trail-running trousers

The Arc'teryx Rho LT Bottoms are a fleece-lined, durable base layer that works well as a standalone layer or under shell pants in cool to cold weather. They deliver warmth, excellent durability, and strong wicking with comfortable, stretchy fit, and true-to-size comfort, though high water absorption when wet and long leg length can be drawbacks; ventilation is important to prevent clamminess in heavy sweat.

The Arc'teryx Rho Bottom is a lightweight, versatile long underwear bottom designed for multi-sport use. It features a high-rise waistband, a stash pocket, and a comfortable, stretchy fit that works well worn alone in cool conditions or layered under ski gear; it’s not the warmest option for the coldest months and is priced at a premium.

Durable synthetic base layer tested for skiing, hiking, climbing, and snow play, offering a strong warmth-to-wicking balance and fast drying. The high-rise, comfortable fit with flatlock seams layers well under other layers and moves well with activity. A noted drawback is that the fabric tends to hold odor after use.

The Torrentshell 3L Pant - Women's is a burly, 3-layer rain pant that improves durability and versatility with side zippers that double as vents. It delivers solid wet-weather protection and year-round use, though it’s heavier than lighter rain pants and isn’t the best option for snow travel or cramming gear into the cuffs.