These Buck Mason sweatpants for men in size M are made from blue loopback French terry cotton knit fabric, providing a comfortable and stretchy fit. The straight leg style with a 30-inch inseam and drawstring closure make them perfect for casual occasions, activities like gym training, basketball, or running. The athletic fit and cotton material ensure a good balance of comfort and style, making them a versatile and practical addition to any man's wardrobe.