Manera Women's Seafarer 2.2mm Long Sleeve Bikini Springsuit Wetsuit Make no mistake, the Bikisuit is not a swimsuit! It’s frustrating to get cold in the summer, therefore the Bikisuit only uses high-quality 2mm neoprene and blind stitched seams. Paired with the renown MANERA fit, the Bikisuit keeps you warm during chilly summer days. Front Zip - Fast & easy frontzip entry for a maximum comfort while riding. X10D Jersey - Our X10D fabric not only provides maximum stretch and lightness, but also a smooth, silky feeling on the skin. GBS Seams - The neoprene layers are glued together and then "blind-stitched". In addition to being 100% waterproof, this type of stitching offers a high level of flexibility.