GoLite, GoLite Jam Backpack - 2100-2500cu in Fire, L All Internal Frame Backpacks >>> Internal Frame Backpacks by GoLite More details and ordering info. The GoLite Jam Backpack is best described as an adventure-racing pack for ultralight backpackers and climbers. Made of super-light Dyneema Gridstop, this pack comes in at under 1.5lb and is fully featured. A small extension sleeve lets you overload this top-access pack; a large, zippered rear pocket helps with organization. Side mesh water bottle pockets and a three-liter hydration sleeve round out this bag and help make it a backpacker's lightweight dream. The Jam is the perfect size for in-a-day alpine climbing or light backpacking. Product Features Material: Dyneema Gridstop Volume: [S] 2100cu in, [M] 2300cu in, [L] 2500cu in Suspension: Padded back panel Back Panel: Foam Hydration Compatible: Yes Product Dimensions: 1.6 pounds User input on GoLite Jam Backpack - 2100-2500cu in Fire, L by GoLite: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines