Here’s a little bit of info on the OG Kush and Kush Hi Concave.
CUSHY SOFT
Poured from an 80a durometer urethane (like a soft skateboard wheel), it’s forgiving under-foot and has just enough give to make foot fatigue a thing of the past without sacrificing responsiveness! Goodbye wood, hello urethane! We tested multiple different durometers with a wide range of rider weights, shoe sizes, and riding styles to find the ideal amount of “kush”. Yeah, it’s basically like having Shred Soles Snowboarding and Skateboarding Insoles for your OW.