When I buy the preshrunk from Amazon, they can be washed and dried to death at any temperature. They get better and better with each washing. Buying the shrink to fit is a risk. So I say stick to "Preshrunk" you cant go wrong. Its a shrinkage insurance policy. Go nutz all my hippie freak buds and budettes...davsusman@aol.com..email me for a fun exchange of ideas...