Internal size reference:
Size S : 4 125mm x 68mm x 13mm
size M : 4.5''-5.1'' 145mm x 75mm x 13mm
size L : 5.2''-5.7'' 163mm x 85mm x 13mm
size XL : 6 ''- 6.5 '' 170mm x 95mm x 13mm
1. Touch Operation Easy Deployment. You Can Operate Without Taking Out The Phone.
2. With key hole and earphone hole.
3. 2 Adjustment holes. It can be firmly tied to the arm
4. Waterproof and Sweat -resistant. It can effectively prevent water from entering.
5. Reflective effect and Night running, keeps you running safely at night.
![](https://ae01.alicdn.com/kf/S6634fbebf3814d6eaeb30eeb96b25707Q.jpg?width=800&height=450&hash=1250)
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