+1 for visible repair, once the polyurethane is set I think it'll be nearly impossible to get out without wrecking the fleece.
Similarly, superglue conveniently spilled on your crotch makes an incredibly long lived suspicious white stain, and hammering a tube of silicone sealant type material may get it to split where you don't want it to, comically squirting it all over your lovely new powerstretch top.
Only chance you have for polyurethanes or silicones is to wash them out very quickly with a non-protic solvent like nail varnish remover (ethyl acetate or acetone), a hydrocarbon (white spirits or petrol if you must). If you don't have those, alcohols can work as well, especially isopropanol. Both of the above cure by contact with water, so do not use water or you'll accelerate the curing process.
But the real solution is not to wear nice stuff whilst you're handling these substances, and don't do it when you're in a rush.