Increase your performance with the Onyx Amp's perfect composition between stretch and warmth. The secret for optimal heat retention lies in ION's proven flexible inside lining called Hot_Stuff 2.0 in combination with toasty warm Plasma_Plush 2.0 on the back panel. I_foam neoprene foam traps more insolating air thanks to a neew structure which contributes to better heat retention and flexibility. In spots without thermo lining, super soft Silk_Stuff increases next-to-skin comfort to the max. The result: Your perfect everyday wetsuit, no matter which conditions you will face today. Thanks to the front zip design, there's nothing to interfere with your paddle power.