Those bands are made of skin-friendly and odorless elastomer, prevents skin from irritation; durable, soft, sweat and water resistant, keeps your wrist comfortable during high intensity workouts.
Compatible Devices:
Compatible with iWatch/Apple Watch 38mm 40mm 42mm 44mm, Series 5, Series 4, Series 3, Series 2, Series 1
Optional Size:
40mm/38mm, S/M, fit 5.1"-7.1" wirst
40mm/38mm, M/L, fit 5.5"-7.5"
44mm/42mm, S/M, fit 5.9"-7.9" wirst
44mm/42mm, M/L, fit 6.3"-8.3"
Multiple Colors: 20 various colors for you to choose, different colors give you different wearing experience.