SLIM PROFILE REVERSIBLE HYDRATION Here’s a runner’s gear essential. Designed to be more comfortable in vests and packs, the Velocity 1.5L features an ergonomic slide-seal top. It’s our lightest reservoir yet, and the wide opening makes for rapid refills at aid stations. Never run on empty. Features Simple to use, the patented slider top opens wide for quick filling and closes tight for a leakproof seal, the Velocity slider features an ergonomic design with no sharp edges Dual FlexGrips make the reservoir convenient to carry and access in your pack, providing a secure grip while filling and pouring External capacity gauge allows you to track your hydration intake or measure out the contents Flexible 36" HydraFlex drink tube is non-kinking and provides a steady flow High-flow Blaster™ bite valve self seals after each sip and features a smooth twist on/off bar to prevent leaks when not in use Plug-N-Play™ connect system lets you easily disconnect the drink tube (an auto shutoff valve prevents leaking) and remove the reservoir from your pack for convenient refilling Removable bite valve allows you to attach most water filters directly to the tube for inline filtering in the backcountry Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity Wide working temperature range (can be frozen - max temp 60° C / 140° F) Safe and reliable, 100% BPA & PVC free Specifications Capacity: 1.5 L / 50 fl oz Dimensions: 315 x 150 mm / 12.3 x 5.9 in Weight: 125 g / 4.4 oz Material:TPU, PP/POM, ABS, Silicone