You want your thermal underwear to add all-important warmth, without feeling bulky or constrictive. So here's our flex performance jersey, light enough to wear as a smooth base layer under your clothing with lots of stretch for total flexibility. While you're moving, moisture wicking technology pulls sweat away from your skin to keep you dry, and built in temperature regulation prevents overheating.

Base layers made for moving - Lightweight stretch jersey • - Moisture wicking • - Elastic waist • - Fly opening • - 88% polyester/12% elastane • - Machine wash • - 73cm/29ins inseam

Something not quite right? You have 28 days from the day you receive it, to send something back.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

Click here to view our full Returns Policy.