Ultimate Direction's insulated 1.5L hydration system keeps liquids at ideal drinking temperature longer.

The narrow design helps prevent sloshing. The wide-necked opening, as well as the Plug-N-Play hydration tube disconnect, makes refilling and cleaning easier. Durable TPU tubing provides high strength and good kink resistance, and the high-flow bite valve makes drinking effortless and self-seals to prevent dripping. 

Features:
• Insulation: keeps liquids at drinking temperature longer
• Removable, insulated hose
• Self-sealing valve