The Amaze Amp 5/4 Front Zip offers incredible stretch without sacrificing warmth, making it the ideal wetsuit for year-round use. Its stretchy material and minimalistic panel design ensure maximum freedom of movement, especially in the arm and shoulder areas. For optimal heat retention, it combines ION's highly flexible Hot_Stuff 2.0 thermo lining with the cozy Plasma_Plush 2.0. The innovative I_foam neoprene traps more air thanks to its foamy structure, enhancing both warmth and flexibility. To protect against cold water entry, a small silicone print at the front zip opening creates a tighter seal between the top and bottom flaps.