Extremely light and durable, the GoLite Jam2 Backpack for Boys is a H2O and abrasion resistant ultra-light pack that can withstand the rigors of backpacking and mountaineering. Built for the ultra-light minimalist, the Jam2 is built with a nice foam back pad and hipbelt and lined with 3-D spacer mesh for excellent breathability and moisture wicking performance. A top-loading, roll-down design allows for the lightest possible design and still offers storm Safe guardion while a large front pocket offers maximum convenience at a minimal weight.