This reservoir with Thermal Control insulation turns any pack into an all-season 70 oz hydration system.

Features

• The brand new Crux Reservoir delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks.
• 10mm closed cell foam reservoir insulation
• Insulated tube and bite valve cover
• Attachment points
• Large adjustable carry loop