Wrap them up warm for the winter in the Unite360 base layer set. The black thermal top and bottoms are ideal for wearing underneath their clothes or ski kit to keep them protected from the bitter temperatures of the winter and mountains. Returns Policy Please note that our returns policy for products such as base layers and swimwear differs from other products. These items are classed as ‘undergarments' and for hygiene reasons are non-returnable and will not be accepted back unless faulty.EXPERT ADVICE Need some guidance on what Base Layers are right for you? Check out our article on Base Layers Explained. View all Expert Advice Guides. Features include flat seams for comfort, side splits, a 1/2 neck zip on the top for easy fit, and an elasticated waist on the bottoms for a better fit. The set also features long sleeves with deep cuffs.