The name says it all: the Classic is the quintessential bike hydration pack, now updated with a Crux reservoir for a faster flow of water.Features:The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaksBreathable air mesh back panel for a lightweight, comfortable fitReflective accents for visibility in low-light environmentsSecure zippered pocket for essentialsLightweight, ventilated mesh harnessHYDRATION CAPACITY: 2.5L/85 fl ozHYDRATION TYPE: CRUX Reservoir with Standard Exit PortBPA/BPS/BPF FREE: YesQUICK LINK DISCONNECT: NoGEAR CAPACITY: 0.5L/30 cu inPACK WEIGHT: 170 g/0 lb 5 ozDIMENSIONS: 38.5 x 22 x 11.5 cm / 15.2 x 8.7 x 4.5 inFITS TORSO: 38-53 cm/15-21 inBACK PANEL: Padded MeshWAIST BELT: N/ANUMBER OF EXTERIOR POCKETS: 2Model year: 2018