Our warmest Rho base layer pant combines Fortius Air 20 nylon and Coreloft Compact synthetic insulation with Torrent microfleece panels at the lower leg, waistband, and crotch gusset to deliver a high level of thermal performance without bulk. The next-to-skin fit layers easily, and articulated patterning combines with stretch for freedom on climbs, uptracks, and descents.

Updated with two exterior drop pockets and stretch Coreloft™ insulation for improved freedom of movement, revised seam placement at the knee and inner calf to reduce chafing, and a next-to-skin fit for comfort under outer layers.

• Durable
• Warm and comfortable
• Coreloft™ synthetic insulation provides warmth with minimal weight and bulk
• Lightweight Torrent™ stretch microfleece is made with wicking yarns, provides warmth and performance stretch, and is brushed for softness
• Recycled nylon plain weave at the front and back leg panels provides light weather protection, durability, and performance four-way stretch
• Fortius™ Air 20 nylon liner is lightweight, breathable, and made with recycled content