Features Includes 1 new Body Bottle™ II 500 ml / 17 oz Comfort Cinch™ 2.0 fit system now more minimal, lightweight, and adjustable Improved sternum straps for a personalized fit Wide side straps offer stability and easy fit adjustments Single front bottle holster with a bungee to secure 5 front stash pockets for easy access to gels, a phone, a GPS beacon, or small gear Convertible rainfly protects the rear storage from poor weather Bladder sleeve for a 3 L reservoir (not included) 2 large rear zipper compartments for apparel, nutrition, and other accessories Upper back stash pocket for a light jacket or a headlamp Lower back stash pocket for extra apparel or gloves Front hose loops allow you to run reservoir hose left or right Rear bungee cord lets you secure the internal load or a jacket 2 rear ice ax loops for mountain conditions Trekking pole holders on the front reduce bounce Reflective details improve visibility in low-light conditions Top haul loop for hanging storage Emergency whistle included Weight w/o bottle: 9.5 oz / 269 g Storage Upper right shoulder pocket: 2.5 in / 16 cm W x 5.5 in / 14 cm H Middle right bottle holster: 4 in / 10 cm W x 6 in / 15 cm H Lower right zipper pocket: 7.5 in / 19 cm W x 4.5 in / 11 cm H Upper left shoulder pocket: 2.5 in / 16 cm W x 4 in / 10 cm H Middle left zipper pocket: 4 in / 10 cm W x 8 in / 20 cm H Lower left stash pocket: 7.5 in / 19 cm W x 5 in / 13 cm H Main rear zipper pocket: 7 in / 18 cm W x 15 in / 38 cm H Secondary rear zipper pocket: 8 in / 20 cm W x 14 in / 36 cm H Upper rear stash pocket: 6 in / 15 cm W x 7 in / 18 cm H Lower rear zipper pocket: 7.5 in / 19 cm W x 8 in / 20 cm H Pack Volume: 17 L / 1037 in³ Bottle Details Body Bottle™ II's 500 ml / 17 oz are slim and packable Soft bite valve with a high flow rate Fills easily with a wide mouth opening Durable PEEVA™ construction does not taint the taste BPA and PVC-free Meets or exceeds USFDA and EC regulations Fabric Flex Mono Mesh, MicroMono Mesh, 20D nylon sil, nylon/elastane with ripstop