What Our Gearhead(R) Experts Are Saying:"The R5 GTX Infinium Pant is the cold-weather running pant I reach for when conditions are genuinely bad rather than just cool. The WINDSTOPPER fabric shuts out wind completely across both legs, and the loose fit gives me enough room to layer underneath on the coldest days without the pants feeling restrictive. The pre-shaped knees are a detail that makes a real difference over longer runs, keeping the fabric in position through the stride rather than pulling back with every knee lift."Cold and wet running conditions ask a lot from a bottom layer, and the GOREWEAR R5 GTX Infinium Pant is built to answer all of it without slowing the runner down. WINDSTOPPER fabric by GORE-TEX LABS delivers totally windproof, durably water-resistant protection across the full leg, blocking wind chill and shedding light precipitation while maintaining the breathability needed to manage output across variable intensities and paces. The loose fit and comfort mapping construction use specific fabric placement to optimize comfort and mobility throughout the leg without the restriction that a closer-fitting windproof pant can create, and the elastane content in both the main fabric and panels keeps everything moving naturally with the stride. Pre-shaped knees follow the natural bend of the leg, so the pant stays in position through every stride without pulling back against knee drive, and the wide elastic waistband keeps the fit secure and comfortable across the full range of running movement without pressure. A zip pocket on the right thigh and a back zip pocket handle storage for essentials and valuables separately, and black reflective tape alongside additional reflective details provide visibility during the low-light conditions that cold and wet weather running regularly delivers.