Here's what other sites are saying:
Wrap style bottle holder grips bottles tightly for a secure hold. Works on 3" - 4" diameter bottles.
- Vargo Outdoors
EK Wrap-A-Bottle Cat - Serious retention for serious sized bottles! Our designer webbing wraps around large bottles and features the convenient carabiner. Use it to attach water bottle to desired gear.
- Massey's Outfitters
EK Bottle Cat
Guyot Designs SplashGuard
Platypus Bite Valve Cover
Nalgene Insulated Water Bottle Sleeve
CamelBak Fresh Reservoir Filter
Hydro Flask Standard Mouth Loop Cap
Platypus Bite Valve and Drink Tube Insulator Kit