Description
- Double-wall construction and open cell foam technology create a barrier – slowing the heat transfer from the user to the hydration
- Soft material conforms to most hydration vests, belts, or pack pockets, makes a great addition or replacement running flask
- Vest-pack fit provides bounce-free stability and a flexible flask shoulder to prevent chafing so you can focus on FKT’s and PR’s
- High-flow bite valve auto-seals after each sip, eliminating annoying drips
- Large standard 42mm opening lets you fill the UltraFlask IT easily with ice and drink mixes
- Customize your cap with two options depending on your run or vest, directly mount your bite valve or use the straw cap (which can be cut to any length)
- Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
- 100% BPA & PVC free, wide working temperature range (can be frozen – max temp 60° C / 140° F)
