Size is Unisex and adjustable with  velcro, see below
★ Custom made by costume dept.One of a kind.  I have similar in camouflage, check my other auctions 
★ My mannequin has a 34 waist and you can see how it fits him
★ Double velcro closure, probably could look better with pocketless pants

Feels to be cotton.  7 different pockets all together.  You are only getting the red belt in this auction, not the pants.  Smallest is 31" perfect fit at 32"  and you could see on my mannequin at 34" the velcro sticks out a bit.  Be somewhere in between.