I have a wide foot. In New balance sneaker I wear a 6 DD because I also have bunions and flat feet. I know that Altra has a larger toe box. I see the running shoes are on sale. My sister has a pair of trail shoes. Her model, I believe ,were the trail shoes # ALW1957F253 with a W above , are these on sale and if so would the Altra fit? If I were to order a pair, could I return them if they did not fit.I would order a 61/2. I will be traveling to New Zealand and will be walking around and wanted comfortable shoes.