CHECK THE SIZE CHART (in the image section above) The Aspire sleeveless wetsuit gives athletes an alternative, premium option for those who want a lighter and more flexible suit. The suit being made from premium SCS 39 Yamamoto fabrics offering fantastic performance features to help your performance. The Aspire is the perfect suit from the beginner athlete, all the way to the pro athlete. The downwards YKK zip enables the suit to go on and off easily. A combination of the recognized red cuffs for improved visibility and also the graphite side panels give the suit a distinguished and premium style. With the maximum 5mm of neoprene allowed under ITU regulations from the ribs down to the knees, gives plenty of buoyancy and core support to ensure the perfect swimming angle. Premium SCS 39 Yamamoto fabrics Designed to ensure superb all-over body flexibility, as well as comfort and performance. Zone3 work on new developments with Yamamoto as a chosen supplier because the neoprene offers fantastic performance features such as: Speed: The aqua dynamic 'SCS' Nano coating applied to the neoprene creates almost zero drag through the water; A drag coefficient of just 0.021 compared with 4.0 for regular neoprene wetsuits. The SCS coating also prevents the suit from absorbing water, and therefore avoiding excess weight in the wetsuit. Flexibility: A massive 480-580% in elongation, compared with human skin (underarm) which is just 60-70%. Therefore, the Aspire has superior flexibility and comfort with an expansion of 7x conventional wetsuit materials. Buoyancy: Derived from limestone rather than oil which offers a 23% higher closed-cell structure. This significantly increasing the buoyancy levels for the swimmer. Warmth: High heat retention: Keeping the body warmer in colder waters to help reduce body fatigue and improve performance. Eco: The neoprene is also derived from limestone opposed to petroleum which is more environmentally friendly. Features-Ultra-flexible 1.5mm shoulder and underarm panels-Buoyancy and core support-A higher stretch -Downwards YKK zip