Black Diamond Distance 15 Backpack Part Backpack, Part Running Vest Take ridgeline scrambles and all day trail-running adventures to the next level with the Distance 15 Backpack. Combining extra storage space from a lightweight backpack and secure comfort from a running vest, you'll have everything you need for a full day in the mountains. Pack layers, snacks, and a small first aid kit inside, attach trekking poles and tools through the gear loops, and keep your hydration accessible with soft flask chest pockets. The vest features make it easy to keep everything secure while you move over terrain while keeping you cool with ventilated materials. Explore more and get there quicker with this hybrid pack. Features Men's/Unisex design for optimal shoulder and chest fit On-the-go Z-Pole storage with secure sleeves built-in Dual side compression for stability and support Made with ripstop fabric for durability and lightweight carry Soft flask pockets and small stash pockets on chest harness MFG#:BD6800340002LRG1SPECIFICATIONSTrip Length Day Size Small, Medium, Large Bag Style Backpack Gender Men's Pack Loading Top Intended Use Multi-Sport Weight361 g Gear Capacity15 LMaterial Ripstop Accessories Included Gear loops, trekking pole storage, 2 soft flask pouches Sizing Size Small Medium Large Torso Circumference (in)26. 5" - 33. 5"31. 5" - 39. 5"35. 5" - 44" | Black Diamond | Black | Diamond Distance 15 Backpack