diff --git a/Assets/VRM10/Runtime/IO/Model/MeshImporter.cs b/Assets/VRM10/Runtime/IO/Model/MeshImporter.cs
index 7cbb52af3..4f60fb8dc 100644
--- a/Assets/VRM10/Runtime/IO/Model/MeshImporter.cs
+++ b/Assets/VRM10/Runtime/IO/Model/MeshImporter.cs
@@ -65,7 +65,6 @@ namespace UniVRM10
             // 頂点を更新
             MeshVertex.SetVertexBufferParamsToMesh(mesh, vertices.Length);
             mesh.SetVertexBufferData(vertices, 0, 0, vertices.Length);
-            mesh.RecalculateBounds();
 
             // 出力のNativeArrayを開放
             vertices.Dispose();
diff --git a/Assets/VRM10/Runtime/IO/Model/MeshImporterDivided.cs b/Assets/VRM10/Runtime/IO/Model/MeshImporterDivided.cs
index 7842f67ec..53577d6fe 100644
--- a/Assets/VRM10/Runtime/IO/Model/MeshImporterDivided.cs
+++ b/Assets/VRM10/Runtime/IO/Model/MeshImporterDivided.cs
@@ -276,7 +276,6 @@ namespace UniVRM10
             // VertexBufferを設定
             MeshVertex.SetVertexBufferParamsToMesh(resultMesh, vertices.Length);
             resultMesh.SetVertexBufferData(vertices, 0, 0, vertices.Length);
-            resultMesh.RecalculateBounds();
 
             // 各種バッファを破棄
             foreach (var disposable in disposables)