PERFECT COMPATIBLE WITH apple watch iWatch 38mm 42mm 40mm 44mm Series 4 / Series 3 / Series 2 / Series 1 / Sports and Edition NEWEST BUCKLE DESIGN: Latest watch buckle design can get MORE confident for you apple watch secure THAN Pin-and-tuck closure And additional SWEET hole design for hidden the bands tail make it NOT appear, also feel more secure MULTIPLE COLORS and SIZES: There are different popular colours available and two selected sizes for you to choose, personalize your apple watch to fit your mood and outfit in daily life.38mm and 40mm S/M Size: Suitable for 5.1"-7.1" (130mm-180mm) wrist The 38mm and 40mm M/L Size: Suitable for 5.9"-7.9" (150mm-200mm) wrist The 42mm and 44mm S/M Size: Suitable for 5.5"-7.5" (140mm-190mm) wrist The 42mm and 44mm M/L Size: Suitable for 6.3"-8.3" (160mm-210mm) wrist SKIN-FRIEND SOFT silicone, the Sport Band was made from a custom high-performance silicone, very durable and strong, yet surprisingly soft. The smooth, dense material drapes elegantly across your wrist and feels comfortable next to your skin