Specifically designed according to Dean Potter's specs for climbing. Lightweight and rugged.

When you consider most of the good climbing pants out there today a lot of the best stuff is highly specialized for winter and cold weather activities like ice climbing and alpine mountaineering. Patagonia's Sender Pant is a durable summertime option that's made from a blend of nylon dobby weave and organic cotton. While some pants compromise strength with stretchy fibers the Sender Pant opts for a tough and dependable design with traditional mobility enhancements like a gusseted crotch knee darts and a climber-oriented fit. The 5.4-ounce fabric is tough but it's also finished with a brushed texture that glides easily. Patagonia applied a flat and smooth wicking waistband that won't bind beneath a climbing harness. If you're looking for more breathable comfort on ascents during the warmer months of the year Patagonia's Sender Pants are a great choice--and everything about the high-stepping and stemming potential is right in line with what Dean Potter asked for a season or two ago.