This muscle fit works best with straight-leg or tapered trousers and sneakers

but tapered from the knee down

Muscle fit polos work best layered under lightweight overshirts for office settings

The fabric's natural breathability makes it suitable for year-round rotation

Check our sizing guide if you're between fits

Basics Slim Fit Koi Orange Twill Checks Shirt Shirt 20BTR43315 This muscle fit works bestThis slim fit shirt in Koi Orange combines 100% cotton with a crisp twill weave that holds structure through the day. The check pattern sits at a medium scalevisible enough to break up solid colour monotony without reading as too formal. A closer look at the construction shows reinforced placket stitching and horn finish buttons that resist chipping, details that outlast cheaper alternatives. The Koi Orange shade sits between rust and burnt orange,