2 Ice boots with 6 CryoPacs.  These help to cool the leg down after a long ride within 20 minutes,  They are pliable allowing them to fit around any let, help on by heavy duty Velcro.
Offered in 5 colors Blue, Red, Purple, Black and Neon Green.  
 
We are told they work great on Riders, too....cool down that sore knee or ankle.