Designed to protect your legs (and family jewels) from off-widths, wind, and cool temperatures, the Arc'teryx Psiphon SL Men's Pant might just become as essential a part of your climbing kit as your cams, rope, and harness. It's a trim-fitting, lightweight setup designed specifically for vertical endeavors, with stretch-woven nylon fabric that's been constructed with articulated knees and a gusseted crotch for easy high stepping, drop kneeing, foot jamming, and belaying. The pockets and adjustable waistband are all constructed to work comfortably with a harness, while the adjustable elastic cuffs keep you from tripping on your pants and the rear webbing loop acts as a chalk-bag holder if you'd rather forgo the belt.