You can feel confident that our footwear fits true to size. We do not offer half sizes. If you are between sizes, we generally recommend sizing up as a little extra room tends to be better than too snug. .Therm-a-Rest™ foam. Water friendly. Adventure Ready rubber sole. Vegan.Our One Year Warranty is a reflection of our commitment to excellence in design, manufacturing and performance. That is a long way of saying we stand behind our product!All orders ship USPS Priority. Please allow up to 1-3 days for your order to be processed plus 1-3 days ground shipping time via USPS Priority.