diff --git a/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/HttpClientFs2Backend.scala b/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/HttpClientFs2Backend.scala
index 3f1d572c25..271d3e33de 100644
--- a/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/HttpClientFs2Backend.scala
+++ b/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/HttpClientFs2Backend.scala
@@ -29,7 +29,6 @@ import java.util.concurrent.Flow.Publisher
 import java.{util => ju}
 import scala.collection.JavaConverters._
 import sttp.client4.compression.Compressor
-import sttp.client4.httpclient.fs2.compression.{DeflateFs2Compressor, GZipFs2Compressor}
 
 class HttpClientFs2Backend[F[_]: Async] private (
     client: HttpClient,
diff --git a/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/compression/fs2Compressor.scala b/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/fs2Compressor.scala
similarity index 80%
rename from effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/compression/fs2Compressor.scala
rename to effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/fs2Compressor.scala
index df65c17fda..94eefb4b61 100644
--- a/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/compression/fs2Compressor.scala
+++ b/effects/fs2/src/main/scalajvm/sttp/client4/httpclient/fs2/fs2Compressor.scala
@@ -1,4 +1,4 @@
-package sttp.client4.httpclient.fs2.compression
+package sttp.client4.httpclient.fs2
 
 import sttp.client4._
 import sttp.client4.GenericRequestBody
@@ -17,12 +17,11 @@ trait Fs2Compressor[F[_], R <: Fs2Streams[F]] extends Compressor[R] {
 
   override abstract def apply(body: GenericRequestBody[R], encoding: String): GenericRequestBody[R] =
     body match {
-      case InputStreamBody(b, defaultContentType) =>
+      case InputStreamBody(b, _) =>
         StreamBody(Fs2Streams[F])(compressStream(fs2.io.readInputStream(b.pure[F](fSync), 1024)(fSync)))
-      case StreamBody(b) => StreamBody(Fs2Streams[F])(compressStream(b.asInstanceOf[fs2.Stream[F, Byte]]))
-      case FileBody(f, defaultContentType) =>
-        StreamBody(Fs2Streams[F])(compressStream(Files[F](fFiles).readAll(f.toPath, 1024)))
-      case _ => super.apply(body, encoding)
+      case StreamBody(b)  => StreamBody(Fs2Streams[F])(compressStream(b.asInstanceOf[fs2.Stream[F, Byte]]))
+      case FileBody(f, _) => StreamBody(Fs2Streams[F])(compressStream(Files[F](fFiles).readAll(f.toPath, 1024)))
+      case _              => super.apply(body, encoding)
     }
 
   def compressStream(stream: fs2.Stream[F, Byte]): fs2.Stream[F, Byte]
diff --git a/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/HttpClientZioBackend.scala b/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/HttpClientZioBackend.scala
index 2bcc37f856..29c2eb558f 100644
--- a/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/HttpClientZioBackend.scala
+++ b/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/HttpClientZioBackend.scala
@@ -10,7 +10,6 @@ import sttp.client4.internal._
 import sttp.client4.internal.httpclient.{BodyFromHttpClient, BodyToHttpClient, Sequencer}
 import sttp.client4.internal.ws.SimpleQueue
 import sttp.client4.testing.WebSocketStreamBackendStub
-import sttp.client4.wrappers.FollowRedirectsBackend
 import sttp.client4.{wrappers, BackendOptions, GenericRequest, Response, WebSocketStreamBackend}
 import sttp.monad.MonadError
 import zio.Chunk.ByteArray
@@ -25,6 +24,7 @@ import java.nio.ByteBuffer
 import java.util
 import java.util.concurrent.Flow.Publisher
 import java.{util => ju}
+import sttp.client4.compression.Compressor
 
 class HttpClientZioBackend private (
     client: HttpClient,
@@ -58,10 +58,11 @@ class HttpClientZioBackend private (
       ByteArray(a, 0, a.length)
     }
 
-  override protected val bodyToHttpClient: BodyToHttpClient[Task, ZioStreams] =
-    new BodyToHttpClient[Task, ZioStreams] {
+  override protected val bodyToHttpClient: BodyToHttpClient[Task, ZioStreams, R] =
+    new BodyToHttpClient[Task, ZioStreams, R] {
       override val streams: ZioStreams = ZioStreams
       override implicit def monad: MonadError[Task] = self.monad
+      override def compressors: List[Compressor[R]] = List(new GZipZioCompressor[R](), new DeflateZioCompressor[R]())
       override def streamToPublisher(stream: ZStream[Any, Throwable, Byte]): Task[BodyPublisher] = {
         import _root_.zio.interop.reactivestreams.{streamToPublisher => zioStreamToPublisher}
         val publisher = stream.mapChunks(byteChunk => Chunk(ByteBuffer.wrap(byteChunk.toArray))).toPublisher
@@ -88,7 +89,7 @@ class HttpClientZioBackend private (
   override protected def standardEncoding: (ZStream[Any, Throwable, Byte], String) => ZStream[Any, Throwable, Byte] = {
     case (body, "gzip") => body.via(ZPipeline.gunzip())
     case (body, "deflate") =>
-      ZStream.scoped(body.peel(ZSink.take[Byte](1))).flatMap { case (chunk, stream) =>
+      ZStream.scoped[Any](body.peel(ZSink.take[Byte](1))).flatMap { case (chunk, stream) =>
         val wrapped = chunk.headOption.exists(byte => (byte & 0x0f) == 0x08)
         (ZStream.fromChunk(chunk) ++ stream).via(ZPipeline.inflate(noWrap = !wrapped))
       }
diff --git a/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/zioCompressor.scala b/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/zioCompressor.scala
new file mode 100644
index 0000000000..780035cd55
--- /dev/null
+++ b/effects/zio/src/main/scalajvm/sttp/client4/httpclient/zio/zioCompressor.scala
@@ -0,0 +1,31 @@
+package sttp.client4.httpclient.zio
+
+import sttp.client4._
+import sttp.client4.compression.Compressor
+import sttp.capabilities.zio.ZioStreams
+
+import zio.stream.Stream
+import sttp.client4.compression.GZipDefaultCompressor
+import sttp.client4.compression.DeflateDefaultCompressor
+import zio.stream.ZPipeline
+import zio.stream.ZStream
+
+trait ZioCompressor[R <: ZioStreams] extends Compressor[R] {
+  override abstract def apply(body: GenericRequestBody[R], encoding: String): GenericRequestBody[R] =
+    body match {
+      case InputStreamBody(b, _) => StreamBody(ZioStreams)(compressStream(ZStream.fromInputStream(b)))
+      case StreamBody(b)         => StreamBody(ZioStreams)(compressStream(b.asInstanceOf[Stream[Throwable, Byte]]))
+      case FileBody(f, _)        => StreamBody(ZioStreams)(compressStream(ZStream.fromFile(f.toFile)))
+      case _                     => super.apply(body, encoding)
+    }
+
+  def compressStream(stream: Stream[Throwable, Byte]): Stream[Throwable, Byte]
+}
+
+class GZipZioCompressor[R <: ZioStreams] extends GZipDefaultCompressor[R] with ZioCompressor[R] {
+  def compressStream(stream: Stream[Throwable, Byte]): Stream[Throwable, Byte] = stream.via(ZPipeline.gzip())
+}
+
+class DeflateZioCompressor[R <: ZioStreams] extends DeflateDefaultCompressor[R] with ZioCompressor[R] {
+  def compressStream(stream: Stream[Throwable, Byte]): Stream[Throwable, Byte] = stream.via(ZPipeline.deflate())
+}