I had a couple of thermal vests and they were wearing out so I looked for new ones on line.What a range of prices and some so outragious it was shocking just for a vest or tee shirt.I ordered three of this brand, waited with hope that they woujd not be too bad as they were not expensive.They arrived in good time and I as very impressed. I ordered "medium" and often that is a too short or tight but this one was just right with enough space to fit and let my body breathe. Quality was superb soft to the touch and very comfortahbleto wear, the seams were stitched with no bits hanging off and in total a well made garment.I ordered white ones but I am now going to order some in a different colour to have a variety, they are just what I want.As a post script to this, I bought a couple of "medium" size similar Tee shirts from a well known national budget Supermarket. They were of course cheaper, well packed but the "medium" was a very tight fit and the material not nice to the touch, rather coarse so there is a comparison.Following a month's use, I've updated this review; initially I was very impressed even though the size was a little small (you need to order at least the next size up, which I did), they are short in the body though, once washed these thermal tee's do feel comfortable and slightly warmer than a normal t-shirt, they are ok price wise, however I've just bought several long sleeve campri vests from Sports Direct for just £4 each, and these are far superior on all accounts (fit, warmth, length) and more importantly they look like they'll last, unlike these sock's uwear thermal's (a month on their already looking well worn).If you are on a budget and want a slightly warmer alternative to a plain tee-shirt then these are indeed good value and make sense, however spend a little more and you'll get far better.They do feel a bit prickly straight out of the pocket, but a lot better when washed.They are described as thermal and they certainly keep you warm and for a great price. They are long enough in the back to not pull out of your trousers when bending. I bought a couple to try and have followed up by buying some more.Feels great quality, still need to test it in the wash. But very comfy!!!One point to mention. In the UK highstreet I am mens large (I'm 6ft 3 and about 14st - always large in: Topman, River Island, Asos, Burtons, Sports Brands). However I initially ordered a large and, whilst it didn't look silly, it was a bit too big, however the medium fitted perfectly. Basically it's the fit of the clothes, for example if I buy cheap t-shirts from Asda they are sometimes similar, so better to go a size down if you're 50/50.These are good Thermal vests, i'm a female working in an aircraft hanger & it's soooo cold in the winter.I thought of men's vests in large sizes because i thought the length would help keep my lower back warm too & it worked well, they can be tucked in & i dont feel trussed up so much, ladies vests just dont come long enough. It's a good idea if you are a woman thinking about doing this, if you work in a warehouse say.The vests wash well & are soft to the skin & most importantly are warm, you dont have to pay for really expensive vests.