DeSoto Men's Riviera Tri Short To improve the durability. Yes, this fabric is more durable, which is important in an area where you will be rubbing against a saddle and where some people's thighs rub together. To keep the modesty panel, well, modest. This fabric is not diaphanous at all (meaning not see-through). Something we all appreciate not involuntarily seeing on others. To make this tri short faster in non-wetsuit races. Liftfoil is our swimskin fabric. The addition of these panels on the front and back makes this tri short faster, and have no adverse affects when worn with a wetsuit.