AONIJIE Professional 5.5L Outdoors Mochilas Trail Marathoner Running Race Hydration Vest Hydration Pack Backpack (Blue, One Size)

LIGNTWEIGHT AND HANDY OUTDOOR BACKPACK: Made from lightweight,breathable mesh back panel and high-quality nylon fabric ,that's very lightweigh comfortable and durable and Adjustable Straps always Make you Have a Comfortable Fit. Let you Enjoy your Outdoor Activities without more Bulking. MULTIPLE STORAGE DESIGNED: Designed with 6 storage pockets, meet your outdoor sports needs. It can store mobile phones, keys, thin raincoats, water pack and other outdoor product. These pockets also allow you to get the things directly, extremely convenien. REFLECTIVE STRIP DESIGN: Front and Back Reflective Strip Design, ensure safety in any light at night during sport; Suitable chest circumference: 80-120 cm/31.5-47.2inch. HYDRATION SYSTEM: Bladder Compartment With Hanging System, Compatible With ONLY BAG or 500ML bottle (you can choice it according to your needs) Capacity:5.5L Size:40*19cm/15.7*7.6inch. FIT YOU WELL: Ergonomic designed vest-shaped bag coming with adjustable waist strap and high elastic chest strap.This backpack can be used for more than just hiking.It is suitable for almost all outdoors activities such as running, riding, camping, marathon, etc.