Men’s Back Zip – Superior flex and durability GREAT flexibility where pattern design is combined with the best available neoprenes in the market. Fully made with Superstretch limestone neoprene, the most flexible material available today, the Celsius is the wetsuit made with the lowest number of panels in our collection. Less panels mean more flexibility. The CELSIUS is 100% pure fabric taped on the inside to increase durability. size:XS / S / M / MT / L / LT /XL / XXL / XXXL