5 of the best winter running leggings

Sweaty Betty Body Map Thermal Run Tights (£90, sweatybetty.com)
Marathon training this winter? Serious training deserves serious leggings, and this pair from Sweaty Betty fit the brief perfectly. The combination of two highly technical fabrics means these leggings will perform whatever the weather. Thermal sweat-wicking fabric is warm and comfy, even on the longest run, while Sensitive Sculpt fabric delivers extra stretch and support.