Camelbak Arete 18 Packs Charcoal/Koi, One Size

2 in 1 design: converts from pack into reservoir sleeve Ultra light materials: less bulk, Perfect travel day pack Cargo compression: keep gear close to your body for better balance and increased stability Essentials org pocket: keeps your small essentials organized and secure Removable sternum strap: offers a range of adjustments for a custom fit and increased stability