CHECK THE SIZE CHART (in the image section above) The all new Wikiwiki 2.0 Wetsuit from Zoot, Hawaiian for "speedy fast", delivers the most cutting-edge performance features on the market. Designed to promote a quicker stroke recovery after the catch phase, this suit is the fastest of its kind. The entire arm and shoulder are engineered with FLEXskin 0.3 mm Yamamoto MarkIII super stretch neoprene. Designed to feel like you are wearing a sleeveless wetsuit with the hydrodynamic speed advantages of fully coated SCS Nano arms. Enjoy the ultimate flexibility and unparalleled buoyancy in the new Wikiwiki wetsuit. FEATURES: NEW FLEXskin 0.3 mm Yamamoto MarkIII arms and shoulders NEW Waterwing catch panel NEW Comfort back neck panel Yamamoto SCS Nano 40 and 39 Yamamoto SCS Nano Aerodome AQUAlift buoyancy profile ULTRA-stretch liner with 12% spandex and 88% silky smooth nylon liner Super thin low-profile neck with fuse welded SCS Nano 2mm Speed Release Ankle Panels OKD - Optimal Kick Design DORSALflex zipper Durable Heat set Moontape and spot reinforcements on seams YKK stainless steel zipper Gender-specific ergonomically shaped panels Includes protective storage bag Zoot has been a global leader in endurance sports for 30 years, specialising in performance apparel, wetsuits, footwear and accessories. Born in Kona in 1983, Zoot began making triathlon clothing for elite athletes before focussing on innovative, functional product solutions for all multisport athletes.