-STRONG FRAME AND DURABAL MATERIAL:Made of ultralight elastic nylon cloth, polyester, breathable mesh back and shoulder strap.
-FIT YOU WELL: Ergonomic design, Vest-shaped bag coming with adjustable waist strap and high elastic chest strap,two sizes for your option.
-LIGNT WEIGHT AND GOOD VOLUME: Weight 0.51 pounds , Capacity 5L. The maximum loading weight is 22.05 pounds, two side pockets for even more space.
-MULTIPLE STORAGE COMPARTMENT: Designed with 10 exterior pockets,equiped with an emergent whistle.
-FOR UNISEX: Designed for men and women, the younger and the older. Good for all ages.
Szie:S/M chest circumference 80-97cm
L/XL chest circumefernce 97-109cm
1x E906 Hydration Backpack