What if your favorite slim-fit jeans also kept you warm? Maven X has gone thermal, and these fleeced jeans are the warm work pants for women. Heres the thing: women want insulated jeans, but without bulk. Or as Dovetail says, liners are for panties, not pants! How does Dovetail retain the flattering fit of their Maven X pant and combat Numb Bum Syndrome? An all-in-one hybrid denim, not denim with a fleece lining glued into it: One fabric, two faces. Which means tough denim on the outside, but fleeced and snuggly on the skin.