Feature

●●Material:75% nylon,25% spandex,Light and close-fitting, comfortable and soft, light and breathable, sports hydrating, multi-dimensional fit to the body shape of the athlete.
●●Size:S-M: 30.3-33.8in,M-L: 32.8- 36in,L-XL:40-45in,The manual measurement,error 1-2cm for the normal range.
●●EXCELLENT FIT -- Elastic power-mesh materials are lightweight and completely chafe-free for comfort while running, shorter length delivers a close fit,Adjustable shoulder straps, sternum/chest and lumbar support, evenly distributed weights, comfortably wrapped around the body, unhindered.
●●VERSATILE STORAGE - Gives you all the space you need to store your essentials. Whether its an extra kettle, a phone or a key, different sizes of pockets are available for your storage needs. Energy replenishment warehouse, help forward.
●●EXTENSIVE APPLICATIONS -- Our Ultra running backpack aims to accompany your trip of Running, Marathon, Jogging, Cycling, Backpacking, etc,Firmly shape the body without reducing too much volume and slowing down.


Description

Size (Chest Circumference):
* S-M: 30.3-33.8in
* M-L: 32.8- 36in
Applicable: Unisex
Capacity: 2.5L
Net Weight: 115g
Package: 1PCS Hydration Race Vest+2PCS 500ML water bottles
The manual measurement,error 1-2cm for the normal range.