The Speedo Proton Thinswim women's Sleeveless Triathlon Wetsuit is designed to provide buoyancy, warmth and flexibility during your open water swim. This durable sleveless wetsuit is packed with great Speedo technology, offering triathlon specific performance at an accessible level, it is an ideal choice for entry level triathletes. For speed in the water and the transition out of it, the Speedo Proton wetsuit range uses light, flexible, hydrophobic materials, suitable for strong swimmers looking for an extra edge on their performance. The Fastskin Proton Wetsuit has been developed with Y38 (Yamamoto 38 cell neoprene rubber) a well balanced foam providing high buoyancy and flexibility that makes it one ofthe most versatile neoprene available. Maximotion+ technology in the single piece chest and shoulder panel means your stroke is as unrestricted as possible. Core stabilisation reinforces the core, enhancing the connection from the torso to the upper and lower body, to promote a more efficient stroke. Neoprene construction, thicker on the abs straps(3,5 mm), for support and un matched buoyancy. Slatted cut leg openings allow for easier suit removal Features: Maximotion+ 1.5mm Neoprene panels used in key areas to create supreme flexibility where you need it most. Yamamoto NANO-SCS provides lower surface friction Low profile collar for comfort and improved hydrodynamic efficiency. Temperature range: +/- 20°C Strategically placed seams Revo Zipper construction is easy to fit and allows a fast transition from swim to bike