The classic pajama set is made from cotton. The fabric is organic, pure natural, and 100% cotton in composition. The set includes a short-sleeved shirt and matching shorts. With pockets. Size up if you are in between sizing or like a more relaxed look. Please refer to our size charts for more assistance in selecting your size. WE OFFER DISCOUNTS ON MULTIPLE ORDER (just write to us to know the details). AFTERCARE: Laundry at cold-rinse delicate option (30 degrees Celsius). Please, NOTICE, that natural fabrics like cotton, wool, and linen are more prone to shrinkage due to consolidation than synthetic fibers like polyester, acrylic, and nylon. Please, notice, that custom orders, including bulk orders, are not returned.