I'm interested in the Five Ten Freerider Mountain Bike Shoes-Men.

I previously purchased a pair of an other brand of shoe, and after wearing them on several rides I was dissatisfied with the comfort. Would it be possible to purchase on-line, sizes 10.5 and 11 for store pick up and decide at that point if they are the proper fit, and if not return one size, or if not both pair. The local store I had gone to didn't have either shoe to try on.