Tie Dyed Shop Tie Dye Recycle Earth Day Shirt Mens Womens Plus Sizes 100% heavy weight cotton (6.1 oz) and pre-shrunk. Men should normally order 1 size larger for a loose fit. Will last a long time with cold water washings. This item uses move expensive pdf (cotton) stitching which absorbs the dye also. The cotton stitching also absorbs the dye which give me a much cleaner look over nylon stitching. This product is totally hand tied and dyed.