- 15-liter capacity
- Polar Layer™ Insulation
- 100% waterproof
- Zipper-free, roll-top closure
- Add air with the IM AirValve™ for increased insulation
- Remove air to roll up for storage
- Ultra-Tough Muleskin™ Exterior
- 100% welded seams
- Weatherproof, zippered front pocket
- Padded, airmesh shoulder straps
- 24+ hours of ice retention