diff --git a/protocols/Cargo.lock b/protocols/Cargo.lock
index 9e04903ff2..1f853f4ad9 100644
--- a/protocols/Cargo.lock
+++ b/protocols/Cargo.lock
@@ -77,7 +77,7 @@ checksum = "d86b93f97252c47b41663388e6d155714a9d0c398b99f1005cbc5f978b29f445"
 
 [[package]]
 name = "binary_codec_sv2"
-version = "1.0.0"
+version = "1.1.0"
 dependencies = [
  "buffer_sv2",
  "quickcheck",
@@ -85,7 +85,7 @@ dependencies = [
 
 [[package]]
 name = "binary_sv2"
-version = "1.0.1"
+version = "1.1.0"
 dependencies = [
  "binary_codec_sv2",
  "derive_codec_sv2",
@@ -260,7 +260,7 @@ dependencies = [
 
 [[package]]
 name = "derive_codec_sv2"
-version = "1.0.0"
+version = "1.1.0"
 dependencies = [
  "binary_codec_sv2",
 ]
diff --git a/protocols/v2/binary-sv2/binary-sv2/Cargo.toml b/protocols/v2/binary-sv2/binary-sv2/Cargo.toml
index 1fd78fcc19..b8742ad48e 100644
--- a/protocols/v2/binary-sv2/binary-sv2/Cargo.toml
+++ b/protocols/v2/binary-sv2/binary-sv2/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "binary_sv2"
-version = "1.0.1"
+version = "1.1.0"
 authors = ["fi3 <email@email.org>"]
 edition = "2018"
 description = "Sv2 data format"
diff --git a/protocols/v2/binary-sv2/no-serde-sv2/codec/Cargo.toml b/protocols/v2/binary-sv2/no-serde-sv2/codec/Cargo.toml
index 5f1f83e129..d564c96be8 100644
--- a/protocols/v2/binary-sv2/no-serde-sv2/codec/Cargo.toml
+++ b/protocols/v2/binary-sv2/no-serde-sv2/codec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "binary_codec_sv2"
-version = "1.0.0"
+version = "1.1.0"
 authors = ["fi3 <email@email.org>"]
 edition = "2018"
 description = "Sv2 data format"
diff --git a/protocols/v2/binary-sv2/no-serde-sv2/codec/src/lib.rs b/protocols/v2/binary-sv2/no-serde-sv2/codec/src/lib.rs
index 8f7d96e62f..8fe893da83 100644
--- a/protocols/v2/binary-sv2/no-serde-sv2/codec/src/lib.rs
+++ b/protocols/v2/binary-sv2/no-serde-sv2/codec/src/lib.rs
@@ -30,9 +30,9 @@ pub use datatypes::{
 };
 
 pub use crate::codec::{
-    decodable::Decodable,
+    decodable::{Decodable, GetMarker},
     encodable::{Encodable, EncodableField},
-    GetSize, SizeHint,
+    Fixed, GetSize, SizeHint,
 };
 
 #[allow(clippy::wrong_self_convention)]
diff --git a/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/Cargo.toml b/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/Cargo.toml
index 62e62bd9c8..93f202d8bd 100644
--- a/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/Cargo.toml
+++ b/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "derive_codec_sv2"
-version = "1.0.0"
+version = "1.1.0"
 authors = ["fi3 <email@email.org>"]
 edition = "2018"
 description = "Derive macro for Sv2 binary format serializer and deserializer"
diff --git a/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/src/lib.rs b/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/src/lib.rs
index 6821abb6ae..5d4ef1b048 100644
--- a/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/src/lib.rs
+++ b/protocols/v2/binary-sv2/no-serde-sv2/derive_codec/src/lib.rs
@@ -2,6 +2,30 @@ extern crate proc_macro;
 use core::iter::FromIterator;
 use proc_macro::{Group, TokenStream, TokenTree};
 
+fn is_already_sized(item: TokenStream) -> bool {
+    let stream = item.into_iter();
+
+    for next in stream {
+        match next.clone() {
+            TokenTree::Group(g) => {
+                if g.delimiter() == proc_macro::Delimiter::Bracket {
+                    for t in g.stream().into_iter() {
+                        match t {
+                            TokenTree::Ident(i) => {
+                                if i.to_string() == "already_sized" {
+                                    return true;
+                                }
+                            }
+                            _ => (),
+                        }
+                    }
+                }
+            }
+            _ => (),
+        }
+    }
+    false
+}
 fn remove_attributes(item: TokenStream) -> TokenStream {
     let stream = item.into_iter();
     let mut is_attribute = false;
@@ -356,8 +380,9 @@ fn get_static_generics(gen: &str) -> &str {
     }
 }
 
-#[proc_macro_derive(Encodable)]
+#[proc_macro_derive(Encodable, attributes(already_sized))]
 pub fn encodable(item: TokenStream) -> TokenStream {
+    let is_already_sized = is_already_sized(item.clone());
     let parsed_struct = get_struct_properties(item);
     let fields = parsed_struct.fields.clone();
 
@@ -392,6 +417,23 @@ pub fn encodable(item: TokenStream) -> TokenStream {
         "<'decoder>".to_string()
     };
 
+    let get_size = if is_already_sized {
+        String::new()
+    } else {
+        format!(
+            "
+            impl{} GetSize for {}{} {{
+                fn get_size(&self) -> usize {{
+                    let mut size = 0;
+                    {}
+                    size
+                }}
+            }}
+            ",
+            impl_generics, parsed_struct.name, parsed_struct.generics, sizes
+        )
+    };
+
     let result = format!(
         "mod impl_parse_encodable_{} {{
 
@@ -408,14 +450,7 @@ pub fn encodable(item: TokenStream) -> TokenStream {
         }}
     }}
 
-
-    impl{} GetSize for {}{} {{
-        fn get_size(&self) -> usize {{
-            let mut size = 0;
-            {}
-            size
-        }}
-    }}
+    {}
 
     }}",
         // imports
@@ -428,16 +463,8 @@ pub fn encodable(item: TokenStream) -> TokenStream {
         parsed_struct.name,
         parsed_struct.generics,
         field_into_decoded_field,
-        // impl Encodable for Struct
-        //impl{} Encodable<'decoder> for {}{} {{}}
-        //impl_generics,
-        //parsed_struct.name,
-        //parsed_struct.generics,
-        // impl GetSize for Struct
-        impl_generics,
-        parsed_struct.name,
-        parsed_struct.generics,
-        sizes,
+        // impl get_size
+        get_size,
     );
     //println!("{}", result);
 
diff --git a/roles/Cargo.lock b/roles/Cargo.lock
index e0dfec0c14..d46de28ea6 100644
--- a/roles/Cargo.lock
+++ b/roles/Cargo.lock
@@ -373,14 +373,14 @@ checksum = "d86b93f97252c47b41663388e6d155714a9d0c398b99f1005cbc5f978b29f445"
 
 [[package]]
 name = "binary_codec_sv2"
-version = "1.0.0"
+version = "1.1.0"
 dependencies = [
  "buffer_sv2",
 ]
 
 [[package]]
 name = "binary_sv2"
-version = "1.0.1"
+version = "1.1.0"
 dependencies = [
  "binary_codec_sv2",
  "derive_codec_sv2",