Uggs are very comfortable and warm, and are wonderful to wear in winter. However as they are made from a natural material, namely sheepskin, they breath well, and so are also comfortable in summer.
There is, however, one problem with acquiring a pair so that you too can join the new movement to wearing these hot Aussie icons of footwear. The price.
A good pair of ugg boots isn't cheap normally. You can pay up to or even over $400 for a new pair, sometimes quite a bit more. Many of the higher priced Ugg boots will sell for over $500, and I have seen them priced at full retail up to $999.
Originally in Australia the Ugg boot wasn't a fashion item but just a comfortable to wear boot, and not that expensive, but now as a fashion item the price of uggs has followed their popularity, up.
But if you love ugg boots or are new to Uggs and would like to try a pair because they sound great don't despair. You can get discount Uggs that are much cheaper than store bought Ugg boots. You just need to know where to look. It isn't necessary to pay $400 plus for a pair of good looking sheepskin Ugg boots, you can buy a nice pair for under $100.
So by all means when you've decided to give the Ugg a go, grab yourself a pair, you'll love them. But don't buy retail at the current high prices, there are other ways to buy cheap Uggs.