1. Material: waterproof polyester
2. Applicable gender: neutral/male and female
3. Applicable scenarios: cycling, hiking, hiking, camping, sports protective gear accessories, sports outdoor bags
4. With reflective strip design, safe riding at night
5. Elastic closed design, easy to access
6. Applicable size of backpack: S 40x32x20cm; M 53x32x20cm, L 65x35x23cm, XL 75x35x23cm
7. Weight: S size is about 45g; M size is about 55g; L size is about 60g; XL size is about 70g