AONIJIE 12L Professional Lightweight Cross-Country Backpack Outdoor Hydration Backpack Hiking Camping Climbing (Orange-M/L)

LIGHTWEIGHT AND ADJUSTABLE -- Made of waterproof nylon and polyester mesh fabrics, waterproof, wearable and good elasticity.The flexible adjustable straps help backpack hug your body nicely.While it weight only 190g, Professional Design for Marathoner and other outdoor activity partners. SIZE -- M/L recommended chest circumfernece:90-102cm/35.4 inch-40.15 inch; L/XL recommended chest circumfernece:102-115cm/40.2 inch-45.3 inch; 4-way-stretch fabric make you comfortable while exercising and make it possible to adjust your chest circumference. MULTI-POCKETS（11 STORAGE POCKETS ） -- You can carry everything you need with the running backpack. Super pocket design that your water bottle, phone, keys, foods can easily stored in the front pack pockets, and bladder or other items can be held in the back one. APPLICATIONS -- The waterproof and sturdy running water vest aims to accompany your trip of Jogging, Running, Marathon, Hiking, Climbing, Cycling, Walking, Backpacking, etc. PACKAGE CONTENT -- 1*backpack+ 1*survival whistle+ 1*Emergency Blanket