diff --git a/src/ast/array_decoration.cc b/src/ast/array_decoration.cc
index 62338b27e1..2bdefd46b1 100644
--- a/src/ast/array_decoration.cc
+++ b/src/ast/array_decoration.cc
@@ -31,14 +31,5 @@ DecorationKind ArrayDecoration::GetKind() const {
   return Kind;
 }
 
-bool ArrayDecoration::IsStride() const {
-  return false;
-}
-
-StrideDecoration* ArrayDecoration::AsStride() {
-  assert(IsStride());
-  return static_cast<StrideDecoration*>(this);
-}
-
 }  // namespace ast
 }  // namespace tint
diff --git a/src/ast/array_decoration.h b/src/ast/array_decoration.h
index 43141a0034..5473385670 100644
--- a/src/ast/array_decoration.h
+++ b/src/ast/array_decoration.h
@@ -37,12 +37,6 @@ class ArrayDecoration : public Castable<ArrayDecoration, Decoration> {
   /// @return the decoration kind
   DecorationKind GetKind() const override;
 
-  /// @returns true if this is a stride decoration
-  virtual bool IsStride() const;
-
-  /// @returns the decoration as a stride decoration
-  StrideDecoration* AsStride();
-
  protected:
   /// Constructor
   /// @param source the source of this decoration
diff --git a/src/ast/stride_decoration.cc b/src/ast/stride_decoration.cc
index eea3053270..6de4550e18 100644
--- a/src/ast/stride_decoration.cc
+++ b/src/ast/stride_decoration.cc
@@ -20,10 +20,6 @@ namespace ast {
 StrideDecoration::StrideDecoration(uint32_t stride, const Source& source)
     : Base(source), stride_(stride) {}
 
-bool StrideDecoration::IsStride() const {
-  return true;
-}
-
 StrideDecoration::~StrideDecoration() = default;
 
 void StrideDecoration::to_str(std::ostream& out, size_t indent) const {
diff --git a/src/ast/stride_decoration.h b/src/ast/stride_decoration.h
index ac4fd371d1..e3abd4bb09 100644
--- a/src/ast/stride_decoration.h
+++ b/src/ast/stride_decoration.h
@@ -33,9 +33,6 @@ class StrideDecoration : public Castable<StrideDecoration, ArrayDecoration> {
   StrideDecoration(uint32_t stride, const Source& source);
   ~StrideDecoration() override;
 
-  /// @returns true if this is a stride decoration
-  bool IsStride() const override;
-
   /// @returns the stride value
   uint32_t stride() const { return stride_; }
 
diff --git a/src/ast/stride_decoration_test.cc b/src/ast/stride_decoration_test.cc
index 4a1088c4b3..6b9725585b 100644
--- a/src/ast/stride_decoration_test.cc
+++ b/src/ast/stride_decoration_test.cc
@@ -29,7 +29,7 @@ TEST_F(StrideDecorationTest, Creation) {
 
 TEST_F(StrideDecorationTest, Is) {
   StrideDecoration d{2, Source{}};
-  EXPECT_TRUE(d.IsStride());
+  EXPECT_TRUE(d.Is<StrideDecoration>());
 }
 
 TEST_F(StrideDecorationTest, Source) {
diff --git a/src/ast/type/array_type.cc b/src/ast/type/array_type.cc
index 4bdaf1b14d..d46fcc58c2 100644
--- a/src/ast/type/array_type.cc
+++ b/src/ast/type/array_type.cc
@@ -65,8 +65,8 @@ uint64_t ArrayType::BaseAlignment(MemoryLayout mem_layout) const {
 
 uint32_t ArrayType::array_stride() const {
   for (auto* deco : decos_) {
-    if (deco->IsStride()) {
-      return deco->AsStride()->stride();
+    if (auto* stride = deco->As<ast::StrideDecoration>()) {
+      return stride->stride();
     }
   }
   return 0;
@@ -74,7 +74,7 @@ uint32_t ArrayType::array_stride() const {
 
 bool ArrayType::has_array_stride() const {
   for (auto* deco : decos_) {
-    if (deco->IsStride()) {
+    if (deco->Is<ast::StrideDecoration>()) {
       return true;
     }
   }
diff --git a/src/reader/wgsl/parser_impl_type_decl_test.cc b/src/reader/wgsl/parser_impl_type_decl_test.cc
index 29c509c818..e8a85f8569 100644
--- a/src/reader/wgsl/parser_impl_type_decl_test.cc
+++ b/src/reader/wgsl/parser_impl_type_decl_test.cc
@@ -408,10 +408,10 @@ TEST_F(ParserImplTest, TypeDecl_Array_MultipleDecorations_OneBlock) {
 
   auto& decos = a->decorations();
   ASSERT_EQ(decos.size(), 2u);
-  EXPECT_TRUE(decos[0]->IsStride());
-  EXPECT_EQ(decos[0]->AsStride()->stride(), 16u);
-  EXPECT_TRUE(decos[1]->IsStride());
-  EXPECT_EQ(decos[1]->AsStride()->stride(), 32u);
+  EXPECT_TRUE(decos[0]->Is<ast::StrideDecoration>());
+  EXPECT_EQ(decos[0]->As<ast::StrideDecoration>()->stride(), 16u);
+  EXPECT_TRUE(decos[1]->Is<ast::StrideDecoration>());
+  EXPECT_EQ(decos[1]->As<ast::StrideDecoration>()->stride(), 32u);
 }
 
 TEST_F(ParserImplTest, TypeDecl_Array_MultipleDecorations_MultipleBlocks) {
@@ -429,10 +429,10 @@ TEST_F(ParserImplTest, TypeDecl_Array_MultipleDecorations_MultipleBlocks) {
 
   auto& decos = a->decorations();
   ASSERT_EQ(decos.size(), 2u);
-  EXPECT_TRUE(decos[0]->IsStride());
-  EXPECT_EQ(decos[0]->AsStride()->stride(), 16u);
-  EXPECT_TRUE(decos[1]->IsStride());
-  EXPECT_EQ(decos[1]->AsStride()->stride(), 32u);
+  EXPECT_TRUE(decos[0]->Is<ast::StrideDecoration>());
+  EXPECT_EQ(decos[0]->As<ast::StrideDecoration>()->stride(), 16u);
+  EXPECT_TRUE(decos[1]->Is<ast::StrideDecoration>());
+  EXPECT_EQ(decos[1]->As<ast::StrideDecoration>()->stride(), 32u);
 }
 
 TEST_F(ParserImplTest, TypeDecl_Array_Decoration_MissingArray) {
diff --git a/src/writer/wgsl/generator_impl.cc b/src/writer/wgsl/generator_impl.cc
index 2428187784..f8cd1fc74b 100644
--- a/src/writer/wgsl/generator_impl.cc
+++ b/src/writer/wgsl/generator_impl.cc
@@ -421,8 +421,8 @@ bool GeneratorImpl::EmitType(ast::type::Type* type) {
     auto* ary = type->As<ast::type::ArrayType>();
 
     for (auto* deco : ary->decorations()) {
-      if (deco->IsStride()) {
-        out_ << "[[stride(" << deco->AsStride()->stride() << ")]] ";
+      if (auto* stride = deco->As<ast::StrideDecoration>()) {
+        out_ << "[[stride(" << stride->stride() << ")]] ";
       }
     }