- Insulating cushioned thermal sleeve
- Eliminates sagging flask as reservoir empties
- 16 ounce Hydraform soft-tech™ bottle shrinks as you drink
- Easy-to-clean flask/BPA-free/high-flow bite valve
- Fully removable thermal sleeve
- Hand-Relaxing design technology
- Integrated hand-to-flask stabilizing features optimizes performance
- Super Comfortable!