The side seams of our products are completely made by mother's hand. it is handmade, not machine sewing. it can be machine washed up to 30°c in delicate and short programs. it is recommended not to be ironed to preserve its natural appearance. it is produced from high quality natural 100% cotton yarn. it can be used in all four seasons. with its breathable fabric feature, it does not make your baby sweat. it can be used in all seasons with its soft texture, such as pique, swaddle cover. .our products are oeko-tex®100 certified, which does not harm the environment and human health. we care about your baby's skin and comfort with our cotton 4 layer muslin products that adapt to your baby's sensitive skin and breathe. size: 100x100cm Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.