The featherweight Flash is the perfect companion for moving fast through the outdoors. At just 200 grams it is hydration compatible, has four lower side pockets providing on the go access for energy gels or lip balm, can be compressed flat for carrying water only and has the capacity to carry the gear needed for fast outings. The back panel and shoulder straps are perforated to be extremely light and improve breathability. The uniquely engineered dual-density foam suspension provides structured support at an incredibly light weight.