Excellent material. for me however the fit wasn't right. - Marmot Transcend Convertible Pant - Men's

Pants are stretchy enough, stylish, and convertible, all while be ultralight. For me though (6'0, 175 lbs) I just could find a size that worked for me. 32 waist was too tight in the crotch/inseam too short, and 34's were too big around the waist. An improvement would be to make the waist have some stretch in them or some adjusters.