Arc'teryx Granville Backpack | BiomeCarry the water resistant Arc'teryx Granville backpack to protect your valuables. Day or night, this 20 liter pack features a reflective logo to keep you visible and safe. Conveniently access your electronics through the zippered back panel and keep them safe when you're wearing the backpack. The adjustable straps provide ultimate comfort, while the zipper and magnet closures ensure that your gear stays dry and secure in this Arc'teryx backpack.