Pants are large but fit me great as a medium over top normal clothes, lots of stretch in them. Black, back zip pocket and the legs are complete zipper with Velcro cover. Great pants, not even sure I ever wore them.
Chaps are handmade black leather, Wife brand. I usually take about a 32 waist pants and these fit nice. Full zipper on legs. I guess a belt style as in Pic. Belt holds them on waist.