Can withstand extreme cold and hot temperatures

Outside Diameter: 19

Apple Watch Charger - Fast charging up to 5W

Weight: 52g

When you store items inside

Active Sport Loop Size:44/45/46/49mm Can withstand extreme cold andGo further, move freer. Active Sport Loop is engineered for your active life. Combining an ultra lightweight, double layer nylon weave with a precision engineered hook and loop fastener, it delivers exceptional breathability and personalized comfort that lasts from your first rep to your final lap. This is the essential strap for peak performance and all day wear. Breathable & ultra lightweight design for all day comfort in any sport Easily adjustable