XCEL Wetsuits. XCEL Infinity Wetsuit 3/2mm & 5/3mm. XCEL O'Zip Wetsuit & XCEL X Flex Wetsuit. Xcel Wetsuits understands the importance of lightness in a wetsuit, while still providing a cutting edge product with superior functionality in the icy Winter waters of California. “It is qualities such as those that saw Xcel take out the Wetsuit of the Year honours at the recent SIMA awards!﷯