As it's been said before, buy a size down since they stretch. I'm a 6.5, so I bought a 6. They stretched to a 7, but are very comfortable.

I've only had problems with my tall classic black ones, the hard part at the heel bends over and actually rubs on my heel and gives me a blister. It's kind of funny since I got them to wear in lieu of my shoes that are uncomfortable and give me blisters. I'm sure the company would fix them if I took the time to send them in, but I never remember to. It's the only pair I've had problems with. I've had the boots and slippers, and also gifted the slippers. The only downside of the slippers (at least for men) is they can get pretty stinky. :D I always use (Earth Theraputics) Tea Tree foot spray daily, and would highly recommend it to people who wear UGG's, especially those of you who don't wear socks! It keeps your feet smelling nice and also has a cooling sensation.

There's nothing I can say that hasn't been said a hundred times over, so I'm going to share my experience with buying UGG's on Amazon below.

I just had a terrible experience purchasing a pair of UGG's on Amazon. I had previously bought mine (as well as those given as gifts) at Nordstrom, however, they were out of the size I needed so I went to Amazon. I feel obligated to warn others after this happened. I purchased the Classic Tall (women's) boots in Chestnut from "Trendystars Boutique" using 1 day Prime shipping. I check my email and see the estimated delivery date for 8 days later, and also that the boots will be in stock 3 days after my purchase date (despite showing they had a pair left when I bought them). I called Amazon to cancel the order, and the rep helped me locate another pair that was Prime Eligible which is when I purchased the Classic Tall (Women's) boots in Chestnut from "Whats Hot". The delivery estimate was correct, showing the next day for arrival. They did in fact show up the next day, however, they were not what I ordered. I got a pair of heavily worn UGG's, so much that the treading was worn down, they smelled pretty foul, had a huge open tear at the seam, several stains on each boot (one measuring over 5" long), and my personal favorite, crusted food debris.

I then got caught up in a finger pointing battle. I called Amazon because there was oddly enough, no option to Contact the Seller. I get the seller's number, but no-one answers. I make two more calls to Amazon and finally squeeze the seller's email from them. A day later, I had a response. The seller blamed Amazon, claiming that Amazon most likely accepted a return from someone and then resold them to me. The problem with this is, according to the 4 different Amazon reps I spoke to, all (damaged/defective/whatever) returns are sent back to the seller. If there were perhaps a slight flaw on one boot, I may understand, but there's no way something so heavily damaged was overlooked. Anyone could have taken a one-second glance at these boots and know they were used (and very old). Take my word for it, if you buy these boots for someone, ship them to yourself and check them first. I'd have been mortified if I didn't look first and gave these to someone.

Anyway, the third time was a charm. Amazon handled my refund and helped me to order a new pair, waiving the Prime fee (not like it's much anyway, but it's a nice gesture). The third pair (same style, color, and size) were ordered from ShoesCentral (for $1.00 cheaper than others, woo-hoo). They showed up first thing in the morning the day after ordering and were in perfect condition, stuffed, stickers on the soles, wrapped, boxed and well packaged.