Hi Volt Green "SUP" model is super intense Green. Can be used with our watch head or any 100 Series Casio GSHOCK. The SUP was developed for Stand Up Paddle Boarding, Mountain Biking, Rock Climbing etc. If you are involved with heavy duty water sports use the "SURF" Model.
**NOTE THIS IS FOR THE WATCH BAND ONLY**
we are in do way affiliated with Casio or GSHOCK Brands.
US Patent Issued on these watch bands.