The UB644 is our relaxed tapered fit: extra room in the seat and thigh tapering to a very narrow leg opening cut and sewn from 11oz raw black selvedge denim with a touch of stretch. Raw denim is famous for being uncomfortable when new, requiring a break-in period, but we made this fabric from an easy-to-wear 11oz standard weight fabric with 1% stretch for added comfort. Both the inside and the outside of the fabric are dyed black for a blackout aesthetic except the contrasting signature blue ear selvedge ID. Black Unbranded leather patch. Union Special chain-stitched hems. Hidden back pocket rivets. Black button fly. Made in China. Please use the measuring guide below to determine your best fit For detailed information on how to use the measuring guide, see our video or blog TAG SIZE 28 29 30 31 32 33 34 36 38 40 42 44 WAIST 30" 31" 32" 33" 34" 35" 36" 38" 40" 42" 44" 46" FRONT RISE 11.5" 11.5" 11.75" 12" 12" 12.25" 12.25" 12.5" 12.75" 13" 13.25" 13.25" UPPER THIGH 11.75" 11.75" 11.75" 12" 12.5" 13" 13.25" 13.5" 14" 14.75" 15" 15.5" KNEE 8.25" 8.5" 8.75" 8.75" 9" 9.5" 9.75" 10" 10.5" 11" 11.5" 12" LEG OPENING 6" 6.25" 6.75" 7" 7" 7.25" 7.25" 7.5" 8" 8.5" 9" 9.25" INSEAM 33" 33" 33" 33" 33" 33" 33" 33" 33" 33" 33" 33" Measurements are in inches | A variance of +/- 0.5" is witi tolerance