These pants mean business in any weather condition, made with durable nylon/spandex 2-way stretch pongee fabric equipped with Rain-Factor water-repellent technology. With zippered cargo pockets, knee articulation, and a crotch gusset, you'll have maximum comfort and functionality on your next adventure. Nylon/Spandex 2-Way Stretch Pongee Fabric Rain-Factor Water Repellent Technology Zippered Cargo Pockets Knee Articulation Crotch Gusset Specs 86% Nylon, 14% Spandex Machine wash cold delicate cycle with like colors, Do not bleach, Do not use softeners, Tumble dry low, Remove promptly, Cool iron if needed Sizing and Fit Model is 5'10" and 195lbs. He is wearing size 36x30. Fits true to size.