Check the listing for details. Outdoor Products 5910wm Arrowhead Gray Internal Frame Backpack. Color: Gray/Black, Condition: Pre-owned. Listed at 14.99 USD. Outdoor Products 5910wm Arrowhead Gray Internal Frame Backpack. Condition is Used. This pack has the strength of an internal frame and good padding, but since the frame rods are removable, it can also be rolled up to pack inside another pack, and is made of lightweight materials. Features:Main pocket about 24" deep, drawstring closureMetal ribbed rods about 19" long slide smoothly into rod pockets to create the internal frame, can be removed to roll up pack for storage/transport.Flat internal pocket over metal rods about 17"x10" could hold a large water bladder.Strap loop (hook-and-loop fastening) above flat internal pocket would keep a water bladder from slipping down into pocket.Rain hood over main pocket fastens with X-shaped quick-release (the quickest-release I've experienced!) buckles.Pocket in rain hood about 10"x7"x4" closes with single zipper (zipper pull made from small-gauge rope).Side pockets, flat with gussets, about 9"x8" zip with single zipper (with small-gauge rope zipper pull but one is missing.)Adjustable straps above side pockets allow items to be rolled up and fastened vertically along the sides.Central outside flat pocket 15"x6" opens from side with single zippper (small-gauge rope zipper pull).Padded web strap handle on outside flat pocket allows the whole pack to be hand-carried horizontally like a duffel bag.Strap loops at the bottom of the pack and in line with the handle allow more items to be tied on the outside.Padded waist strap is about 6" wide at hips for comfortable weight-bearing, adjustable straps that fasten with X-shaped quick-release buckle.Back and shoulder straps are padded.Adjustable shoulder straps include adjustable chest strap with X-shaped quick-release buckle, clip for hydration tube.Double-sewn web strap at top of pack creates a vertical handle strong enough to lift the whole thing.