These pants are woven with a special machine called "Whole Garment" which means they are not sewn at all. These shorts are thin and have no seams and are sewn so they wont get ragged, making them very comfortable to wear. This item warms your hips and stomach area, and is useful for winter as well as chilly days. The characteristics of organic cotton is excellent in the summer and is gentle on dry and sensitive skin during the winter, making it comfortable for all seasons. Organic Garden cotton products are carefully grown without pesticides, chemical fertilizers or withered leaves. This is a safe and safe cotton certified by a certification agency that has been harvested after full exposure to sunlight and grows. No dyeing or chemicals used, so it is safe for your skin and the planet. We hope you will feel the happiness that you are wrapped in organic. Care Instructions: Always use a laundry net when washing. Do not bleach or tumble dry. ·There may be some shrinkage after washing because it is not pre-shrunk. Sizes: M-L (Waist: 64-77); Material: 60% cotton (using organic cotton); 32% nylon, 8% polyurethane; Country of Origin: Japan; Note: Do not use chlorine bleach or detergent with fluorescent whitening agents. Organic cotton is a mysterious fiber that changes deeper colors from sunlight, fluorescent light, sweat, etc. Due to the nature of sewing, there may be slight differences in the size.