Great Product, bad Order

I am a big fan of Under Armour Compression Shorts, and prefer them to other brands (like Shock Doctor). However, this order interface is terrible, and I have never seen such an obvious error on the part of Amazon. There is no size information to indicate what size you are ordering. It says sizes S-XL available, but gives you no way to choose your size. I very foolishly ordered anyway and what I received was size small. So I had to return the items and get replacements. Road Runner Sports has great customer service and made the return and reorder very easy, but it would have been better if I could have chosen my size when I placed the order through Amazon.