CHECK THE SIZE CHART (in the image section above) The Men's MACH2 From Dare2Tri is the newest Entry Level Wetsuit that does not compromise on features. The Black and Blue MACH2 is packed with features. Using high quality neoprene and specially constructed  high stretch shoulders, underarms and arms panels provides flexibility where it matters. The smooth skin surface coating improved hydrodynamics without compromising on comfort. Thinner 2.0mm Under Arms, 2.5mm Arms and Shoulders A 4-way stretch nylon that not only soft but very durable is used for the under arm construction. The shoulders and arms are made of a 2.5mm thick smooth skin neoprene giving the swimmer improved 360° rotation of the arm and allowing the swimmer to reach further with less effort. This benefit is multiplied as it reduces upper body fatigue over longer distances.  Collar 2.0mmThe collar is designed to minimise water ingress, made of a single layer which can be cut with scissors to your personal perfect fit if needed, the collar provides no chafing.  Unique Neck ClosureThe velcro closure on the rear is reversed so in the event the suit is closed incorrectly, only the soft material touches the skin.  YKK Zipper The world's 1 zipper brand is utilised with a stainless steel runner. The zipper runs in a bottom-up configuration.