Yes. Our return and exchange policy can be viewed here: http://www.sierratradingpost.com/lp2/exchange-return/
Yes. This is STP's return policy: "Items must be returned within 90 days in original condition to receive a refund or exchange. Original condition means the item is not washed, worn (aside from trying it on), damaged or altered and returned with all hangtags and original packaging where possible."
I returned mine because I didn't like the fit. The back of the heel area was too over-padded for my foot to feel comfortable in them. I really like the shoe other than that.