(*Brand new) Men's Large Jean Jacket

Bought a smaller size LG. stressed/stone washed Men's jean jacket by Integral Jeans Co. for ($130 +tax), but the sizing is slightly too small. Perhaps a smaller guy or large sized Meduim build would be perfect! It's new...only tried on and took home...& bought it from a "good salesman who told me it was fine", and to find that there are no refunds accepted in the Gastown store I bought it from. Selling for $40.