The Apple 45mm Solo Loop for Apple Watch 49/46/45/44mm. Clover version. Size 4. Model: ML173ZM/A.

44mm, 45mm, 46mm, and 49mm bands are all compatible with 44mm, 45mm, 46mm, and 49mm case sizes.

Features:

• Made from liquid silicone rubber, the Solo Loop features a unique, stretchable design with no clasps, buckles, or overlapping parts, so it s ultra comfortable to wear and easy to slip on and off your wrist.
• Each band is specially treated with UV to give the band a silky, smooth finish.
• It s also swim proof and sweatproof, so it can go just about anywhere you want to wear it.