From Manufacturer
The Thule Stir 25L Men's Hiking Backpack is designed to support any adventure with a highly weather- and abrasion-resistant coated nylon fabric. Stay cool with a breathable back panel and shoulder straps. Streamline your carry around town by completely removing the sternum strap and hip belt. Quickly stow and access extra layers in the front shove-it pocket, access keys or a snack in the shoulder strap stretch pocket, and stash water bottles or other essentials in the expandable side pockets. The hydration-compatible design features a reservoir sleeve with drink tube exit port. Attach an ice axe or trekking poles with dedicated loop attachments. Stay visible in low light conditions with a reflective logo. A top zippered mesh pocket can hold a phone, wallet, or keys.