The REI Co-Op Classic Sahara Convertible is a pair of men's pants that can be converted into shorts. They are made of nylon and have a mid-rise waist with a flat front. The pants have a straight leg style and come in a solid gray color. They feature a zip closure and zipper accents, and have a classic fit. The pants have a 36-inch waist and a 33-inch inseam, making them size XL. They are suitable for casual occasions and can be worn in all seasons. The product is part of the REI Co-Op product line.