Your Backpack Review

Geared for mountain biking, trail running or day hiking the Viper 4 features lock lid helmet clip, top zippered pocket for quick access, elastic sternum strap with magnetic bite valve attachment, cell phone/MP3 pocket on shoulder strap, blinker light attachment, reflective graphics, bungee lacing system on front panel, heat embossed fabric sunglasses pocket and a 2L reservoir.

Geared for mountain biking, trail running or day hiking the Viper 13 features lock lid helmet clip, top zippered pocket for quick access, elastic sternum strap with magnetic bite valve attachment, cell phone/MP3 pocket on shoulder strap, blinker light attachment, reflective graphics, internal pump and tool pouch, large front zippered pocket with shove it pocket behind, heat embossed sunglasses pocket, front stretch mesh pocket, 2x side compression straps, top zippered slash pocket, and 3L reservoir.

Geared for mountain biking, trail running or day hiking the Viper 7 features lock lid helmet clip, top zippered pocket for quick access, elastic sternum strap with magnetic bite valve attachment, cell phone/MP3 pocket on shoulder strap, blinker light attachment, reflective graphics, internal pump sleeves and tool pouch, heat embossed fabric sunglasses pocket, bungee lacing system on front pocket and a 2L reservoir

Geared for mountain biking, trail running or day hiking the Viper 10 features lock lid helmet clip, top zippered pocket for quick access, elastic sternum strap with magnetic bite valve attachment, cell phone/MP3 pocket on shoulder strap, blinker light attachment, reflective graphics, internal pump and tool pouch, heat embossed sunglasses pocket, front stretch mesh pocket, 2x side compression straps, top zippered slash pocket, and 3L reservoir.