Here's what other sites are saying:
The Neoprene Cozy helps your JETBOIL Personal Cooking System or 1-liter companion cup stay hot in cold weather and cold in hot weather. Five different color options to personalize your JETBOIL for any situation.
- Mountain Gear
Personalize your Jetboil PCS. This neoprene insulating cozy makes your Jetboil PCS as individual as you are. Assorted Colors.
- Ramsey Outdoor
The Neoprene Cozy by JetBoil is an insulating neoprene for PCS or 1 liter companion cup. Keep your food warm and make your cup stand out.
Neoprene sleeve allows you to grip the cup while it insulates the contents to speed up boiling time
- Massey's Outfitters