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: 18*10*2.5cm 7. Weight: about 100g
