These are for runners who prefer liner-free running shorts. An update toPatagonia's Trail Chaser Shorts, the Nine Trails Unlined Shorts use a lightweight, stretchy polyester blend. Details: two front drop-in pockets right-back zippered pocket.Material3.5-oz 75-denier 91% recycled polyester/9% spandex with 4-way stretch and a DWR (durable water repellent) finishFeaturesThese are for runners who prefer liner-free running shorts. An update toPatagonia's Trail Chaser Shorts, the Nine Trails Unlined Shorts use a lightweight, stretchy polyester blend. Details: two front drop-in pockets right-back zippered pocket.Breathable 91% recycled polyester/9% spandex plain-weave blendShell fabric treated with a DWR (durable water repellent) finishElastic waistband with embedded internal drawcordTwo front drop-in pockets right-back zipper pocket with key loopReflective logo on left-front hem and back6" inseam 2" side notchProduct Weight in Grams: 138,91 1% for the planet Since 1985, Patagonia has pledged 1% of sales to the preservation and restoration of the natural environment. 1% for the Planet is an alliance of businesses that understand the necessity of protecting the natural environment. They understand that profit and loss are directly linked to its health, and are concerned with the social and environmental impacts of industry.Shoes