Buy on Amazon.co.uk : http://www.amazon.co.uk/gp/product/B007FWD0CG?tag=animalisimo04-21

Pearl Izumi Men's Elite Thermal Leg Warmer - Black Medium

This upgraded version of the best selling Thermal Leg Warmer features the ELITE Thermal Fleece provides superior warmth stretch and recovery
Anatomic front-to-back construction eliminates bunching through the full range of motion
Elastic binding with silicone gripper for a stay-up fit
Reflective elements for low-light visibility
Zippered ankle for easy off and on
Weather forecast Cold and dry