Outdoor Research Cirque II Pants

Backcountry.com says:
The Outdoor Research Cirque Softshell Pants are our go-to pants for all things alpine. Their tough, stretchy, and water-resistant fabric was made for our most rugged missions, whether they're in the shoulder season or the dead of winter. Abrasion-resistant performance and a movement-mirroring stretch keep them prepared for mountainous terrain, while articulated knees and a gusseted crotch increase your natural comfort and range of motion. You'll also be ready for backcountry ski tours thanks to the dedicated avalanche beacon pocket and durable scuff guards that resist damage from ski edges, boot rub, and poles.