Only a tenner now. I’ve a couple of these and the vest version too. Fab base layer. planetx.co.uk/deals/q/deal-CLPXLSBL
These are good quality, only clothing I've bought from PlanetX that I've been 100% happy with. The sleeveless base layers are really good for turbo trainer sessions too. NB, they were on a better offer a few weeks back as all clothing was 3 for 2 mix and match.