The perfect balance between weight, features, comfort and durability, the LF 30L leaves no feature out while coming in at very light weight. The goal with the LF 30L wasn&';t to design the lightest pack, but a light pack with features to elevate your flow in the mountains such as being able to take your avalanche tools out without taking your pack off, easy access pockets and more. Features 30L, with extendable rolltop to 38L Easiest avalanche tool access of any pack on the market with access to tools without taking pack off Removable frame Back panel access with composite back panel that resists bulging Top zip for quick access to the top of the pack, not obstructed by the helmet carry 2 quick access stash pockets for no zip transitions A-frame ski/snowboard ski carry and vertical snowboard carry that attaches to frame for increased stability Updated for this year modular diagonal ski carry has 3 positions: both sides of diagonal carry and skimo carry to carry skis without taking your pack off Integrated helmet carry Glove stash strap on shoulder strap Ice tool carry that keeps picks enclosed Hip pad pocket that fits an iPhone (updated to be bigger this year) and new quick access hip pocket on the left 8mm of foam in the shoulder straps Radio/hydration pass through Drainage out of cinch top and avy tools Ice clipper attachment Specs 30L, expandable to 38L 1060g, strippable to 980g with removable frame. S: 11.5"x5"x19.5", M: 11.5"x5"x21", L: 11.5"x5"x23" Main fabric: Challenge Ultra 400TX, 400d UHMWPE woven that is 2x more tear resistant and 8x more abrasion resistant than similar ultralight fabrics with a hydrostatic head rating of 130k. Main fabric is updated for this year to be even more durable Rolltop: 100d high tenacity polyester with UHMWPE crossply Helmet Carry: Lycra, Nylon, UHMWPE woven. Frame: 7mm aluminum tubing