I am planning to purchase some hiking boots online, but I have no idea what size to order. I typically wear shoes that range in size from 6.5 to 7.5, and my feet measure just under 9.5" long when I am standing. Since I will be hiking in summer weather, I am not planning to wear thick wool socks, but I do have shoe inserts that I may put in the boots should they lack sufficient arch support. Should I allow for extra space in the boots by ordering a 7.5, or should I stick to a size 7? Any advice would be appreciated. Thanks in advance!