HeatCore™ Bodywarmer

Sleeveless, so it slides under a shell without bulk at the arms.

Quilted sleeveless heated shell with a nine-area heating layout and two zipped hand pockets. Runs from a USB power bank you already own; no cell is supplied in the box. Size: S, M, L, XL, 2XL, 3XL.

If you are between two sizes, take the larger one — everything here is meant to be layered. Garment measurements are on the page for the pieces where the maker publishes them.

Machine wash cool and inside out, and skip the fabric softener — it coats the fibre and is the most common way people ruin the wicking on a base layer. Do not tumble dry fleece or anything waterproof. Heated pieces are washed only with the power cell removed.

Exchange or return within 30 days, unworn and in its original packaging. The return instructions come in the parcel.