Quality Materials: This AWH Trail Loop is made from a nylon weave creating a soft band with increased elasticity for a comfortable fit. skin-friendly and breathable. Adjustable Design: The AWH Trail Loop 49/45/44/42MM size fits 145–220mm wrists.. Easily adjust the strap length to fit your wrist without constriction. Comfortable to wear: The AEH Trail Loop nylon band is infinitely adjustable with a convenient pull tab for quick adjustments on the go. thin and lightweight design. Mountaineering, hiking, running, rock climbing, running, cycling and other outdoor adventure sports can wear this Trail Loop. AWH Daily Wear： Works great all day---workouts and regular wear. This Trail Loop Not irritating to your skin when hot out or your sweating, Soft and comfortable feeling brings good time all day. Compatible Models: The AWH Trail Loop Band Compatible with Apple Watch band 49/45/44/42/41/40/38mm,for iWatch series SE 8/7/6/5/4/6/2/1,Ultra.Sport and Edition, all models Style: Modern