diff --git a/cats/src/io/github/iltotore/iron/cats.scala b/cats/src/io/github/iltotore/iron/cats.scala
index 9541243f..0ccf25b4 100644
--- a/cats/src/io/github/iltotore/iron/cats.scala
+++ b/cats/src/io/github/iltotore/iron/cats.scala
@@ -5,7 +5,8 @@ import _root_.cats.kernel.{CommutativeMonoid, Hash, LowerBounded, PartialOrder,
 import _root_.cats.syntax.either.*
 import _root_.cats.{Eq, Monoid, Order, Show}
 import _root_.cats.data.Validated.{Invalid, Valid}
-import io.github.iltotore.iron.constraint.numeric.{Greater, Less, Positive, Negative}
+import _root_.cats.Functor
+import io.github.iltotore.iron.constraint.numeric.{Greater, Less, Negative, Positive}
 
 import scala.util.NotGiven
 
@@ -172,6 +173,10 @@ object cats extends IronCatsInstances:
    * Represent all Cats' typeclass instances for Iron.
    */
 private trait IronCatsInstances extends IronCatsLowPriority, RefinedTypeOpsCats:
+    
+  given [F[_]](using functor: Functor[F]): MapLogic[F] with
+    
+    override def map[A, B](wrapper: F[A], f: A => B): F[B] = functor.map(wrapper)(f)
 
   // The `NotGiven` implicit parameter is mandatory to avoid ambiguous implicit error when both Eq[A] and Hash[A]/PartialOrder[A] exist
   inline given [A, C](using inline ev: Eq[A], notHashOrOrder: NotGiven[Hash[A] | PartialOrder[A]]): Eq[A :| C] = ev.asInstanceOf[Eq[A :| C]]
diff --git a/cats/test/src/io/github/iltotore/iron/CatsSuite.scala b/cats/test/src/io/github/iltotore/iron/CatsSuite.scala
index cfffd0b6..ec53085a 100644
--- a/cats/test/src/io/github/iltotore/iron/CatsSuite.scala
+++ b/cats/test/src/io/github/iltotore/iron/CatsSuite.scala
@@ -145,4 +145,9 @@ object CatsSuite extends TestSuite:
       val validatedNelWithSucceedingPredicate = Temperature.validatedNel(100)
       assert(validatedNelWithSucceedingPredicate == Valid(Temperature(100)), "valid should contain result of 'apply'")
     }
+
+    test("refineAll") {
+      test - assert(Temperature.optionAll(NonEmptyList.of(1, 2, -3)).isEmpty)
+      test - assert(Temperature.optionAll(NonEmptyList.of(1, 2, 3)).contains(NonEmptyList.of(Temperature(1), Temperature(2), Temperature(3))))
+    }
   }
diff --git a/docs/_docs/reference/refinement.md b/docs/_docs/reference/refinement.md
index 5176236b..286ac8c1 100644
--- a/docs/_docs/reference/refinement.md
+++ b/docs/_docs/reference/refinement.md
@@ -245,6 +245,17 @@ createUser("Iltotore", "abc123  ") //Left("Your password should be alphanumeric"
 
 Note: Accumulative versions exist for [Cats](../modules/cats.md) and [ZIO](../modules/zio.md).
 
+### Refining first order types
+
+Iron provides utility methods to easily refine first order types (e.g container types like `List`, `Future`, `IO`...).
+
+```scala
+List(1, 2, 3).refineAllUnsafe[Positive] //List(1, 2, 3): List[Int :| Positive]
+List(1, 2, -3).refineAllUnsafe[Positive] //IllegalArgumentException
+```
+
+Variants exist for `Option/Either`, `assume`, `...Further` as well as `RefinedTypeOps` constructors.
+
 ## Assuming constraints
 
 Sometimes, you know that your value always passes (possibly at runtime) a constraint. For example:
diff --git a/main/src/io/github/iltotore/iron/MapLogic.scala b/main/src/io/github/iltotore/iron/MapLogic.scala
new file mode 100644
index 00000000..db82a503
--- /dev/null
+++ b/main/src/io/github/iltotore/iron/MapLogic.scala
@@ -0,0 +1,27 @@
+package io.github.iltotore.iron
+
+import scala.collection.IterableOnceOps
+import scala.concurrent.{ExecutionContext, Future}
+
+/**
+ * A typeclass providing a `map` method. Mainly used to abstract over Cats and ZIO Prelude.
+ *
+ * @tparam F the wrapper type
+ */
+trait MapLogic[F[_]]:
+
+  def map[A, B](wrapper: F[A], f: A => B): F[B]
+
+object MapLogic:
+
+  given [C, CC[x] <: IterableOnceOps[x, CC, C]]: MapLogic[CC] with
+
+    def map[A, B](wrapper: CC[A], f: A => B): CC[B] = wrapper.map(f)
+
+  given [L]: MapLogic[[x] =>> Either[L, x]] with
+
+    override def map[A, B](wrapper: Either[L, A], f: A => B): Either[L, B] = wrapper.map(f)
+
+  given (using ExecutionContext): MapLogic[Future] with
+
+    override def map[A, B](wrapper: Future[A], f: A => B): Future[B] = wrapper.map(f)
\ No newline at end of file
diff --git a/main/src/io/github/iltotore/iron/RefinedTypeOps.scala b/main/src/io/github/iltotore/iron/RefinedTypeOps.scala
index b274504b..c6dd0e31 100644
--- a/main/src/io/github/iltotore/iron/RefinedTypeOps.scala
+++ b/main/src/io/github/iltotore/iron/RefinedTypeOps.scala
@@ -2,6 +2,8 @@ package io.github.iltotore.iron
 
 import scala.compiletime.summonInline
 import scala.reflect.TypeTest
+import scala.util.boundary
+import scala.util.boundary.break
 
 /**
  * Utility trait for new types' companion object.
@@ -30,13 +32,23 @@ trait RefinedTypeOps[A, C, T](using private val _rtc: RuntimeConstraint[A, C]):
   inline def apply(value: A :| C): T = value.asInstanceOf[T]
 
   /**
-   * Refine the given value at runtime, assuming the constraint holds.
+   * Refine the given value, assuming the constraint holds.
    *
    * @return a constrained value, without performing constraint checks.
-   * @see [[apply]], [[applyUnsafe]].
+   * @see [[assumeAll]], [[apply]], [[applyUnsafe]].
    */
   inline def assume(value: A): T = value.asInstanceOf[T]
 
+  /**
+   * Refine the given value at runtime.
+   *
+   * @return this value as [[T]].
+   * @throws an [[IllegalArgumentException]] if the constraint is not satisfied.
+   * @see [[fromIronType]], [[either]], [[option]].
+   */
+  inline def applyUnsafe(value: A): T =
+    if rtc.test(value) then value.asInstanceOf[T] else throw new IllegalArgumentException(rtc.message)
+
   /**
    * Refine the given value at runtime, resulting in an [[Either]].
    *
@@ -48,8 +60,6 @@ trait RefinedTypeOps[A, C, T](using private val _rtc: RuntimeConstraint[A, C]):
 
   /**
    * Refine the given value at runtime, resulting in an [[Option]].
-   *
-   * @param constraint the constraint to test with the value to refine.
    * @return an Option containing this value as [[T]] or [[None]].
    * @see [[fromIronType]], [[either]], [[applyUnsafe]].
    */
@@ -57,14 +67,52 @@ trait RefinedTypeOps[A, C, T](using private val _rtc: RuntimeConstraint[A, C]):
     Option.when(rtc.test(value))(value.asInstanceOf[T])
 
   /**
-   * Refine the given value at runtime.
+   * Refine the given value(s), assuming the constraint holds.
    *
-   * @return this value as [[T]].
-   * @throws an [[IllegalArgumentException]] if the constraint is not satisfied.
-   * @see [[fromIronType]], [[either]], [[option]].
+   * @return a wrapper of constrained values, without performing constraint checks.
+   * @see [[assume]].
    */
-  inline def applyUnsafe(value: A): T =
-    if rtc.test(value) then value.asInstanceOf[T] else throw new IllegalArgumentException(rtc.message)
+  inline def assumeAll[F[_]](wrapper: F[A]): F[T] = wrapper.asInstanceOf[F[T]]
+
+  /**
+   * Refine the given value(s) at runtime.
+   *
+   * @return the given values as [[T]].
+   * @throws IllegalArgumentException if the constraint is not satisfied.
+   * @see [[applyUnsafe]].
+   */
+  inline def applyAllUnsafe[F[_]](wrapper: F[A])(using mapLogic: MapLogic[F]): F[T] =
+    mapLogic.map(wrapper, applyUnsafe(_))
+
+  /**
+   * Refine the given value(s) at runtime, resulting in an [[Either]].
+   *
+   * @return a [[Right]] containing the given values as [[T]] or a [[Left]] containing the constraint message.
+   * @see [[either]].
+   */
+  inline def eitherAll[F[_]](wrapper: F[A])(using mapLogic: MapLogic[F]): Either[String, F[T]] =
+    boundary:
+      Right(mapLogic.map(
+        wrapper,
+        either(_) match
+          case Right(value) => value
+          case Left(error)  => break(Left(error))
+      ))
+
+  /**
+   * Refine the given value at runtime, resulting in an [[Option]].
+   *
+   * @return an Option containing the refined values as `F[T]` or [[None]].
+   * @see [[option]].
+   */
+  inline def optionAll[F[_]](wrapper: F[A])(using mapLogic: MapLogic[F]): Option[F[T]] =
+    boundary:
+      Some(mapLogic.map(
+        wrapper,
+        option(_) match
+          case Some(value) => value
+          case None        => break(None)
+      ))
 
   def unapply(value: T): Option[A :| C] = Some(value.asInstanceOf[A :| C])
 
diff --git a/main/src/io/github/iltotore/iron/conversion.scala b/main/src/io/github/iltotore/iron/conversion.scala
index 4d9b3d09..b773a2a6 100644
--- a/main/src/io/github/iltotore/iron/conversion.scala
+++ b/main/src/io/github/iltotore/iron/conversion.scala
@@ -3,6 +3,8 @@ package io.github.iltotore.iron
 import io.github.iltotore.iron.constraint.collection.ForAll
 
 import scala.language.implicitConversions
+import scala.util.boundary
+import scala.util.boundary.break
 
 /**
  * Implicitly refine at compile-time the given value.
@@ -62,10 +64,10 @@ implicit inline def autoDistribute[A, I[_] <: Iterable[?], C1, C2](inline iterab
 extension [A, C1](value: A :| C1)
 
   /**
-   * Refine the given value again at runtime, assuming the constraint holds.
+   * Refine the given value again, assuming the constraint holds.
    *
    * @return a constrained value, without performing constraint checks.
-   * @see [[assume]].
+   * @see [[assume]], [[assumeAllFurther]].
    */
   inline def assumeFurther[C2]: A :| (C1 & C2) = (value: A).assume[C1 & C2]
 
@@ -112,6 +114,59 @@ extension [A, C1](value: A :| C1)
   inline def refineFurtherOption[C2](using inline constraint: Constraint[A, C2]): Option[A :| (C1 & C2)] =
     (value: A).refineOption[C2].map(_.assumeFurther[C1])
 
+extension[F[_], A, C1] (wrapper: F[A :| C1])
+
+  /**
+   * Refine the given value(s) again, assuming the constraint holds.
+   *
+   * @return the constrained values, without performing constraint checks.
+   * @see [[assume]], [[assumeFurther]].
+   */
+  inline def assumeAllFurther[C2]: F[A :| (C1 & C2)] = wrapper.asInstanceOf[F[A :| (C1 & C2)]]
+
+  /**
+   * Refine the given value(s) again at runtime.
+   *
+   * @param constraint the new constraint to test.
+   * @return the given values refined with `C1 & C2`.
+   * @throws IllegalArgumentException if the constraint is not satisfied.
+   * @see [[refineUnsafe]], [[refineFurtherUnsafe]].
+   */
+  inline def refineAllFurtherUnsafe[C2](using mapLogic: MapLogic[F], inline constraint: Constraint[A, C2]): F[A :| (C1 & C2)] =
+    mapLogic.map(wrapper, _.refineFurtherUnsafe[C2])
+
+  /**
+   * Refine the given value(s) again at runtime, resulting in an [[Either]].
+   *
+   * @param constraint the new constraint to test.
+   * @return a [[Right]] containing the given values refined with `C1 & C2` or a [[Left]] containing the constraint message.
+   * @see [[refineEither]], [[refineAllFurtherEither]].
+   */
+  inline def refineAllFurtherEither[C2](using mapLogic: MapLogic[F], inline constraint: Constraint[A, C2]): Either[String, F[A :| (C1 & C2)]] =
+    boundary:
+      Right(mapLogic.map(
+        wrapper,
+        _.refineFurtherEither[C2] match
+          case Right(value) => value
+          case Left(error) => break(Left(error))
+      ))
+
+  /**
+   * Refine the given value(s) again at runtime, resulting in an [[Option]].
+   *
+   * @param constraint the new constraint to test.
+   * @return a [[Option]] containing the given values refined with `C1 & C2` or [[None]].
+   * @see [[refineOption]], [[refineFurtherOption]].
+   */
+  inline def refineAllFurtherOption[C2](using mapLogic: MapLogic[F], inline constraint: Constraint[A, C2]): Option[F[A :| (C1 & C2)]] =
+    boundary:
+      Some(mapLogic.map(
+        wrapper,
+        _.refineFurtherOption[C2] match
+          case Some(value) => value
+          case None        => break(None)
+      ))
+
 extension [A, C1, C2](value: A :| C1 :| C2)
 
   /**
diff --git a/main/src/io/github/iltotore/iron/package.scala b/main/src/io/github/iltotore/iron/package.scala
index 3dc0730c..148f45e7 100644
--- a/main/src/io/github/iltotore/iron/package.scala
+++ b/main/src/io/github/iltotore/iron/package.scala
@@ -5,7 +5,8 @@ import io.github.iltotore.iron.macros
 import scala.Console.{CYAN, RESET}
 import scala.compiletime.{codeOf, error, summonInline}
 import scala.reflect.TypeTest
-import scala.util.NotGiven
+import scala.util.{boundary, NotGiven}
+import scala.util.boundary.break
 
 /**
  * The main package of Iron. Contains:
@@ -48,11 +49,10 @@ end IronType
 extension [A](value: A)
 
   /**
-   * Refine the given value at runtime, assuming the constraint holds.
+   * Refine the given value, assuming the constraint holds.
    *
-   * @param constraint the constraint to test with the value to refine.
    * @return a constrained value, without performing constraint checks.
-   * @see [[autoRefine]], [[refineUnsafe]].
+   * @see [[assumeAll]], [[autoRefine]], [[refineUnsafe]].
    */
   inline def assume[B]: A :| B = value
 
@@ -98,4 +98,59 @@ extension [A](value: A)
    * @see [[autoRefine]], [[refineUnsafe]], [[refineEither]].
    */
   inline def refineOption[B](using inline constraint: Constraint[A, B]): Option[A :| B] =
-    Option.when(constraint.test(value))(value)
\ No newline at end of file
+    Option.when(constraint.test(value))(value)
+
+extension [F[_], A](wrapper: F[A])
+
+  /**
+   * Refine the contained value(s), assuming the constraint holds.
+   *
+   * @return constrained values, without performing constraint checks.
+   * @see [[assume]], [[autoRefine]], [[refineUnsafe]].
+   */
+  inline def assumeAll[B]: F[A :| B] = wrapper
+
+  /**
+   * Refine the given value(s) at runtime.
+   *
+   * @param constraint the constraint to test with the value to refine.
+   * @return the given values as [[IronType]].
+   * @throws an [[IllegalArgumentException]] if the constraint is not satisfied.
+   * @see [[refineUnsafe]].
+   */
+  inline def refineAllUnsafe[B](using mapLogic: MapLogic[F], inline constraint: Constraint[A, B]): F[A :| B] =
+    mapLogic.map(wrapper, _.refineUnsafe[B])
+
+
+  /**
+   * Refine the given value(s) at runtime, resulting in an [[Either]].
+   *
+   * @param constraint the constraint to test with the value to refine.
+   * @return a [[Right]] containing the given values as [[IronType]] or a [[Left]] containing the constraint message.
+   * @see [[refineEither]].
+   */
+  inline def refineAllEither[B](using mapLogic: MapLogic[F], inline constraint: Constraint[A, B]): Either[String, F[A :| B]] =
+    boundary:
+      Right(mapLogic.map(
+        wrapper,
+        _.refineEither[B] match
+          case Right(value) => value
+          case Left(error)  => break(Left(error))
+      ))
+
+  /**
+   * Refine the given value(s) at runtime, resulting in an [[Option]].
+   *
+   * @param constraint the constraint to test with the value to refine.
+   * @return a [[Some]] containing the given values as [[IronType]] or [[None]].
+   * @see [[refineOption]].
+   */
+  inline def refineAllOption[B](using mapLogic: MapLogic[F], inline constraint: Constraint[A, B]): Option[F[A :| B]] =
+    boundary:
+      Some(mapLogic.map(
+        wrapper,
+        _.refineOption[B] match
+          case Some(value) => value
+          case None        => break(None)
+      ))
+
diff --git a/main/test/src/io/github/iltotore/iron/testing/RefinedTypeOpsSuite.scala b/main/test/src/io/github/iltotore/iron/testing/RefinedTypeOpsSuite.scala
index 748ea2f6..3452ccc2 100644
--- a/main/test/src/io/github/iltotore/iron/testing/RefinedTypeOpsSuite.scala
+++ b/main/test/src/io/github/iltotore/iron/testing/RefinedTypeOpsSuite.scala
@@ -32,6 +32,13 @@ object RefinedTypeOpsSuite extends TestSuite:
       assert(t2 == Temperature(15.0))
     }
 
+    test("assume") - assert(Temperature.assume(-15) == -15.0.asInstanceOf[Temperature])
+
+    test("applyUnsafe") {
+      test - assertMatch(Try(Temperature.applyUnsafe(-100))) { case Failure(e) if e.getMessage == "Should be strictly positive" => }
+      test - assert(Temperature.applyUnsafe(100) == Temperature(100))
+    }
+
     test("either") {
       val eitherWithFailingPredicate = Temperature.either(-5.0)
       assert(eitherWithFailingPredicate == Left("Should be strictly positive"))
@@ -46,12 +53,22 @@ object RefinedTypeOpsSuite extends TestSuite:
       assert(fromWithSucceedingPredicate.contains(Temperature(100)))
     }
 
-    test("applyUnsafe") {
-      test - assertMatch(Try(Temperature.applyUnsafe(-100))) { case Failure(e) if e.getMessage == "Should be strictly positive" => }
-      test - assert(Temperature.applyUnsafe(100) == Temperature(100))
+    test("assumeAll") - assert(Temperature.assumeAll(List(1, -15)) == List(1, -15).asInstanceOf[List[Temperature]])
+
+    test("applyAllUnsafe") {
+      test - assertMatch(Try(Temperature.applyAllUnsafe(List(1, 2, -3)))) { case Failure(e) if e.getMessage == "Should be strictly positive" => }
+      test - assert(Temperature.applyAllUnsafe(List(1, 2, 3)) == List(Temperature(1), Temperature(2), Temperature(3)))
     }
 
-    test("assume") - assert(Temperature.assume(-15) == -15.0.asInstanceOf[Temperature])
+    test("either") {
+      test - assert(Temperature.eitherAll(List(1, 2, -3)) == Left("Should be strictly positive"))
+      test - assert(Temperature.eitherAll(List(1, 2, 3)) == Right(List(Temperature(1), Temperature(2), Temperature(3))))
+    }
+
+    test("option") {
+      test - assert(Temperature.optionAll(List(1, 2, -3)).isEmpty)
+      test - assert(Temperature.optionAll(List(1, 2, 3)).contains(List(Temperature(1), Temperature(2), Temperature(3))))
+    }
 
     test("nonOpaque") {
       val moisture = Moisture(11)
diff --git a/zio/src/io/github/iltotore/iron/zio.scala b/zio/src/io/github/iltotore/iron/zio.scala
index 14b686c7..3cb6b636 100644
--- a/zio/src/io/github/iltotore/iron/zio.scala
+++ b/zio/src/io/github/iltotore/iron/zio.scala
@@ -1,7 +1,7 @@
 package io.github.iltotore.iron
 
 import _root_.zio.NonEmptyChunk
-import _root_.zio.prelude.{Debug, Equal, Hash, Ord, Validation}
+import _root_.zio.prelude.{Covariant, Debug, Equal, Hash, Ord, Validation}
 
 object zio extends RefinedTypeOpsZio:
 
@@ -34,6 +34,10 @@ object zio extends RefinedTypeOpsZio:
      */
     def validation(value: A): Validation[String, T] =
       Validation.fromPredicateWith(ops.rtc.message)(value)(ops.rtc.test(_)).asInstanceOf[Validation[String, T]]
+      
+  given [F[+_]](using covariant: Covariant[F]): MapLogic[F] with
+
+    override def map[A, B](wrapper: F[A], f: A => B): F[B] = covariant.map(f)(wrapper)
 
 private trait RefinedTypeOpsZio extends RefinedTypeOpsZioLowPriority:
 
diff --git a/zio/test/src/io/github/iltotore/iron/ZIOSuite.scala b/zio/test/src/io/github/iltotore/iron/ZIOSuite.scala
index 96943770..89e54c88 100644
--- a/zio/test/src/io/github/iltotore/iron/ZIOSuite.scala
+++ b/zio/test/src/io/github/iltotore/iron/ZIOSuite.scala
@@ -4,13 +4,11 @@ import io.github.iltotore.iron.constraint.all.*
 import utest.{Show as _, *}
 
 import scala.runtime.stdLibPatches.Predef.assert
-import io.github.iltotore.iron.zio as ironZio
+import io.github.iltotore.iron.zio.{*, given}
 import _root_.zio.prelude.ZValidation
 import _root_.zio.Chunk
 import _root_.zio.NonEmptyChunk
 
-import io.github.iltotore.iron.zio.validation
-
 object ZIOSuite extends TestSuite:
   val tests: Tests = Tests {
 
@@ -22,4 +20,9 @@ object ZIOSuite extends TestSuite:
           ZValidation.Failure[String, String](Chunk.empty, NonEmptyChunk.single("Should be strictly positive"))
       )
     }
+
+    test("refineAll") {
+      test - assert(Temperature.optionAll(NonEmptyChunk(1, 2, 3)).contains(NonEmptyChunk(Temperature(1), Temperature(2), Temperature(3))))
+      test - assert(Temperature.optionAll(NonEmptyChunk(1, 2, -3)).isEmpty)
+    }
   }