*Water resistant nylon fabric, providing long-lasting performance with minimal weight.
*Ergonomical air diversion system and breathable mesh on the back for pressure reduction.
* Multiple straps on the lateral pockets, keeping your bottles/umbrella strong and tight.
* Adjustable and breathable padded shoulder strap to meet different requirements for men and women.
* Much larger than other hiking backpack, roomy enough for your hammock, clothes, towel, journal, and other outdoor survival supplies, etc.