"Bought this to get through the winter and so far it has been a good purchase. Decided to go for the small size and it fits very snuggly and feels cold to the skin when you first put it on but you soon warm up. I have seen people wear these as a top on its own but unless you have a physique like Tiger Woods, dont bother (like i said, they do fit rather snug),but it does'nt hinder any movement at all as it stetches quite nicely.Overall a good piece of kit which helps keep out those cold winter chills and providing you with additional support for those creaking bones."