These prototype pants are likely from AW05, Alexander Mcqueen's first winter collection for men. Constructed from some sort of wool/synthetic blend with synthetic insulation, they're absurdly warm - perfect for keeping an eye out for probe droids while riding a tauntaun on Hoth.
Chevron quilted front with plain back, they feature velcro cuff adjusters, 2 hand pockets and one back pocket. Since these are prototypes, the one hand pocket doesn't actually have a pocket bag, and there's no tags aside from the McQueen branded waistband lining. In good used condition, the hem lining isn't stitched down on one leg (easy fix).
Fit a size 48/M/32" waist.