This ultrathin, lightweight, and stretchy band is made from a nylon weave for increased elasticity and a comfortable fit. The band is infinitely adjustable with a convenient pull tab for quick adjustments on the go, and it now features reflective yarn woven into its distinct edges. The Trail Loop contains 30% recycled content by weight, and 100% of the manufacturing electricity is covered by clean energy. | Apple | | 49mm Trail Loop - M/L | Black Titanium | Black/Charcoal | Best Buy