They're made with a stretch twill, and they have thicker seams in high-stress areas.
Brad's Deals Editor Jim,
These men's Dockers 5‑Pocket Straight Lightweight Pants list at $58, but you can get them for $24.97 during this sale at Dockers.com. Shipping is free. That's the best price we can find anywhere by about $5 from a reputable seller. These pants are made with a lightweight stretch twill, and they have thicker threads in high-stress areas. Note that only the pictured Oyster Grey color is available at this price. Other colors cost extra. Looking for a different style? These Alpha Khakis are on sale for the same price, and there are many more pants available in the sale section. Sales tax is charged in most states.