Maoko Mens Sports Short Sleeve Polyester T-Shirt,Running T Shirts for Boys Quick Drying 9 Colors Material: 100% polyester Does well in the washer and dryer- very few wrinkles. Both shirts are nicely constructed in and out This shirt is especially good for travel when you need to pack light as this shirt can be washed, and dried overnight and does not wrinkle. It is easy, casual wear over jeans or leggings.