Here's what other sites are saying:
Everything you need from a hydro shoe and nothing more. The Proton II features breathable stretch mesh upper with large diameter pull loops for easy entry. The low profile Spider Rubber completes the package making the Proton II a time-tested Teva favorite. Material: - Stretch Mesh Outsole: - 3D Wrap-over - Spider Rubber Weight: - 16.4 oz (Approximate weight of one shoe)
- Massey's Outfitters refers to the men's version
These reef walkers stay on your feet even if you unexpectedly encounter nasty hydraulics! Lightweight 2mm neoprene and two-way stretch material help keep these shoes securely on your feet underwater. Mesh uppers drain quickly and improve ventilation when you move between land and water. Asymmetrical outsole design prevents wear in high-abrasion areas and provides increased traction. Non-marking Spider Rubber® outsoles provide just the right amount of grip and performance on river rocks or in tide pools.
- REI refers to the men's version
The Proton II is a soft and flexible water shoe that provides great underwater grip. You'll wonder how you ever got by without them! Uppers of high-abrasion four-way stretch mesh; just pull on for a foot-conforming comfortable fit. Spider Rubber outsole for low-profile, all-purpose grip. Fast drying. Only 1 pound per pair! Vegan (no animal-based materials).
- EMS refers to the men's version