1. Universal zipper and multi interlayer design, multi-functional, meet your needs.
2. You can put mobile phone, coins, keys, card, money in the bag.
3. EVA + neoprene material, waterproof, shockproof and impact resistant.
4. Elastic telescopic arm strap fits for 22-34cm arm circumference.
5. Used for various activities such as running, biking, working out, hiking, etc.
6. Size: 16*8.5*2cm
7. Weight: about 80g