Photon PantsRab USA
The Photon Pants are very warm, PrimaLoft® synthetic insulated pants, designed to provide greater freedom of movement in extreme mountain environments.
Using a combination of Pertex® Microlight and 100% Ripstop fabrics, the Photon Pants are extremely durable and are designed to withstand expedition abuse. Reinforced knees, seat and kick patches provide high levels of freedom of movement, and full-length YKK side zips make the pants easy to take on and off when wearing crampons. A expedition fit means the Photon Pants can be worn as an outer layer in conjunction with the Expedition Jacket in the harshest environments.
Update for 2020: Rab switched the insulation from Polartec to 100g/m² of Stratus™ recycled insulation