Their Photon Pant is built for cold, high-altitude mountain and polar environments where staying warm and dry is critical.

The PrimaLoft® Gold Insulation uses fine, water-repellent fibres with a high warmth-to-weight ratio and excellent breathability and improved comfort during activity spikes. The tightly woven Pertex® Quantum outer is light and supple, fending off the elements while reinforced Pertex® Shield panels at the seat, knee and inner leg add extra durability at high-friction zones.

Highly efficient when damp and easy to compress, the use of full-length side zips with insulated baffles means you can pull them on over boots and regulate your temperature as conditions demand.