Osprey Stratos 36 Backpack Ain't No Mountain High Enough For day hikers committed to putting in big days on trail and in the backcountry, the Stratos 36 offers rugged reliability and sustainable design, matched with super breathable and comfortable suspension that makes each mile better than the last. When day hikes stretch into more committing endeavors, this pack is the perfect size for your essentials and then some. Its top-loading design and fixed top lid help make packing a breeze, while the ventilated Air Speed(TM) suspension keeps you cool and comfortable all day long. Features Air Speed(TM) suspension system with seamless mesh back panel for superior ventilation Top-loading main compartment with fixed lid and zippered bottom access Breathable mesh hipbelt flows seamlessly from back panel for body-hugging comfort Dedicated sleeping bag compartment keeps gear organized and accessible Integrated raincover deploys when weather turns nasty Adjustable torso length fits different body types for a personalized fit Made with recycled materials and designed to last decades of trail time SPECIFICATIONSIntended Use Day Hiking, Short Overnights Capacity36 LWeight (M)3 lbs 2 oz / 1. 43 kg Dimensions29" x 12" x 11"Torso Fit Range Adjustable 17" - 19"Materials100% recycled nylon, bluesign(R) approved Warranty Lifetime All Mighty Guarantee | Osprey | Stratos 36 Backpack Hydration Pack | Nylon