Recycled TORAY ripstop, cut slim, with enough stretch in it to bend over a putt. Water and wind repellant. The waistband is elasticated for an athletic fit. The leg narrows slightly at the bottom so it breaks cleanly on the shoe instead of getting crumpled around it. There's an extra piece of fabric called a gusset built into the seat of the trousers so you can turn through the ball without the trouser pulling. The scorecard pockets are laser cut clean, no stitching or bulk, and shaped after bunkers.