diff --git a/src/root.zig b/src/root.zig
index 6917582..dc8add7 100644
--- a/src/root.zig
+++ b/src/root.zig
@@ -26,6 +26,10 @@ pub const Vec2f = Vec(f32, 2);
 pub const Vec3 = Vec(i32, 3);
 pub const Vec3f = Vec(f32, 3);
 
+// --- VEC4 ---
+pub const Vec4 = Vec(i32, 4);
+pub const Vec4f = Vec(f32, 4);
+
 // --- MAT ---
 pub const Mat2x2 = Mat(f32, 2, 2);
 pub const Mat3x3 = Mat(f32, 3, 3);
diff --git a/src/vec.zig b/src/vec.zig
index b5ec601..5b94def 100644
--- a/src/vec.zig
+++ b/src/vec.zig
@@ -141,21 +141,25 @@ pub fn Vec(
         pub const up: Self = blk: {
             if (Len == 2) break :blk .new(.{ 0, -1 });
             if (Len == 3) break :blk .new(.{ 0, -1, 0 });
+            if (Len == 4) break :blk .new(.{ 0, -1, 0, 0 });
         };
 
         pub const down: Self = blk: {
             if (Len == 2) break :blk .new(.{ 0, 1 });
             if (Len == 3) break :blk .new(.{ 0, 1, 0 });
+            if (Len == 4) break :blk .new(.{ 0, 1, 0, 0 });
         };
 
         pub const left: Self = blk: {
             if (Len == 2) break :blk .new(.{ 1, 0 });
             if (Len == 3) break :blk .new(.{ 1, 0, 0 });
+            if (Len == 4) break :blk .new(.{ 1, 0, 0, 0 });
         };
 
         pub const right: Self = blk: {
             if (Len == 2) break :blk .new(.{ -1, 0 });
             if (Len == 3) break :blk .new(.{ -1, 0, 0 });
+            if (Len == 4) break :blk .new(.{ -1, 0, 0, 0 });
         };
 
         pub const forward: Self = blk: {