Here's what other sites are saying:
The Hydration Pack can be used with the First Class Seat in any of the Magic, Marvel or Ultimate series kayaks. It stays conveniently behind the paddler but is attached to the seat instead of a PFD. Made from 100% recyclable HiFlow(R) 3-D Mesh and Textelene(R) Solar Screen fabric which dries quickly and vents well to stay cool.
- Massey's Outfitters