Absolutely if you don't like the fit or style, they can be returned just like anything else from Sierra Trading Post, the package comes with a return label if needed.
Follow the return policy of Sierra Trading Post. I've ordered tons of things from here and a total of 5 pairs of Costa sunglasses, be sure to go to Costa's website and look over the sizing chart then look at the details on each pair of glasses on STP site to make sure they will fit you!
Yes. Our return and exchange policy can be viewed here: http://www.sierratradingpost.com/lp2/exchange-return/