The Down Shift Hydration Pack features Hydro Flask’s revolutionary Cold Flow System that keeps water chilled for over 4 hours. Designed to shift weight down for a stable ride while offering ample storage for your gear. Water stays cool. You stay comfortable. Mile after mile.Product Information:

• HydraPak IsoBound 2 L Insulated Reservoir
• High-flow HydraPak Blaster Bite Valve self-seals after each sip
• HydraPak Plug-N-Play connect system lets you easily disconnect the hose and remove the reservoir from your pack for convenient refilling
• Padded back panel for added comfort
• Fully adjustable shoulder, sternum and hip straps
• Soft pocket for sunglasses or a phone
• Helmet attachment loops
• Chest strap with integrated whistle
• Webbing for a bike light attachment
• Key clip