Hydration Backpack， Terra Hiker Ultralight Backpack， Hydration Vest for Outdoor Trail， Marathoner， Running， Race， Lightweight & Versatile[Product Information]- Enter your model numberto make sure this fits.
- PERFECT FIT: Fully adjustable waist and chest straps; perfectly wraps and conforms to your body; stays steady and thus allows free movement while you are running， race walking， hiking， or cycling; suitable for chest size: 31.49 in - 47.24 in (80 cm - 120 cm)
- WATERPROOF & BREATHABLE: Made of premium ripstop and waterproof nylon material; padded mesh back provides superior ventilation; sweat-resistant mesh helps keep you cool and dry
- VERSATILE: Main compartment can store a hydration bladder of 1-2 L; 2 side pockets and a large back pocket allow you to store 500 mL water bottles and personal items like towels， sweatshirts， phone， keys， snacks and more
- LIGHTWEIGHT: Lightweight at only 0.44 lbs (220 g) and won’t add extra bulk; vest design precisely positions backpack to help maintain balance during sports activities
- SAFETY FEATURES: Meticulously designed with reflective strips for increased safety during early morning and evening activities or in other low light conditions
