I've always been a fan of Uniqlo, I find their items really wash and wear well, are stylish and are very reasonably priced. A couple of weeks ago I decided to try their HeatTech range.
It has
Seven Technologies, which are: Heat Generation, Heat Retention, Soft Texture, Odour Control, Stretchable Comfort, Anti-Static and Non Deforming.
Well I ordered a dark brown polo neck jersey and a royal blue scoop neck jersey and although I've only wore the royal blue one, it certainly kept me warm when I layered it with a bolero on top. It also washed up well and looks like it barely needs ironing.

The polo neck version is available in an array of different colours and is on sale price for £7.99

The scoop neck is also available in different colours for £9.99
There are also different styles available and I do recommend them from personal use-they are a stylish and warm way to layer up this winter!!