Engineered from 100% Japanese Yamamoto neoprene, 2XU"s new A:1S Sleeveless is designed for athletes demanding optimal flotation and flexibility, without the expense. Proprietary 2XU features include Roll bar for enhanced body positioning, Floating Zip Panel for extended reach and 39 Cell Front Buoyancy Panel for elevation in the water. Bringing top end technology to entry level swimmers, 2XU has also included Velocity Strakes in a SCS coated front chest panel for heightened body positioning and streamlined tracking through the water. Complete with a two year warranty, the A:1S Sleeveless offers industry leading quality in a great value suit.