. Sugar River by Gemplers Breathable Polyester Rain Pants Men's waist size: M (34-36), L (38-40), XL (42-44), 2XL (44-46) or 3XL (48-50). The Exterior Shell is made of a heavier denier Polyester, designed to stand up rugged expectations you will demand of it. These Gemplers Ultra-Tough Breathable Polyester Rain Pants keep you warm and dry in wet weather.