Apple’s 46mm Neon Yellow Sport Loop is a soft, breathable band designed for all-day comfort and workouts. Its double-layer woven nylon features dense loops on the skin side that cushion the wrist and help moisture escape, while a hook-and-loop fastener lets you fine-tune the fit instantly. The band works with Apple Watch cases sized 44mm, 45mm, 46mm, and 49mm, covering most modern models. Apple highlights recycled content: the loop includes recycled spandex and polyester, plus high-recycled nylon—some sourced from discarded fishing nets—with manufacturing powered by clean energy. One size fits most, making it an easy upgrade that pops with bold neon color.