100% lightweight, soft prewashed cotton canvas. Size B - a roomy medium. (Currently sold out in sizes A-C. Product Code: P09010) - pull on with elastic waistband - Drawstring ties inside for cinching - Side seam pockets - 3-panel legs create curved inseam and a great, architectural shape.  * I am 5'9" 150 and these are too full for my liking. I should have read the sizing info and ordered an A, even though it would have seemed too small to consider. roucha.com/pages/size-chart