Mens De Soto Riviera Tri Short Improved 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. Modesty panel. This fabric is not diaphanous at all (meaning not see-through). Faster: The addition of the Liftfoil panels on the front and back makes this trishort faster, and have no adverse affects when worn with a wetsuit. S Waist 24"-27", M Waist 27"-32", L Waist 32"-35", XL Waist 35"-41", XXL Waist 41"-46".