Tie Dyed Shop - Tie Dye T Shirt- Red Pipes of Peace - Small to 5X 100% heavy weight cotton (6.1 oz) and pre-shrunk. Will last a long time with cold water washings. We use pdf (cotton) stitching which absorbs the dye also. Some vendors use cheaper lightweight shirts with nylon stitching which does not absorb the dye. Adult sizes small to 5X are normally in stock.