The Lightning 45 is the ideal companion for all adventure seekers who value lightweight luggage. Weighing only 1.18 kilograms, this backpack offers a perfect combination of functionality and comfort, specifically designed for multi-day trekking tours. Features Reliable roll-top closure expands pack volume to store extra gear when needed and keeps dust and moisture out Side pockets made of elastic fabric can be used to store items such as water bottles, trekking poles or tent poles Zippered pockets on the hipbelt provide even more quick-access storage space Side zigzag compression straps and a webbing strap that runs across the pack with quick-release buckles keep gear like a mat or tent fly securely in place Removable top compression strap with aluminum Rapide hook can be used to compress pack or secure gear to top of pack Height-adjustable comfort suspension system with minimal back contact points provides good ventilation and quick adjustability Extremely lightweight material is water-repellent and PFC-free Specs Best Use Backpacking Frame Type Internal Frame Ultralight Yes Gear Capacity (L) 45 liters Gear Capacity (cu. in.) 2,746 cubic inches Weight 2 lbs. 7.8 oz. Adjustable Torso Length Yes Fits Torso Length (in.) 16-23 inches Fits Waist/Hips 34.3-57.1 inches Material(s) 210-denier HMPE ripstop nylon, PU-coated, 1,500 mm water column, PFC-free, Oeko-Tex 100 certified; recycled 600-denier oxford polyester, PU-coated, 1,500 mm water column, PFC-free Frame Material 6061-T6 series aluminum Number of Stays 1 Reservoir Compatible Yes Pack Access Top Number of Exterior Pockets 4 + main compartment Raincover Included No Hipbelt Pockets Yes Dimensions 28.3 x 12.6 x 9.8 inches Gender Men's Sustainability Contains recycled materials