Our first and only black belt brings a whole new look, while still offering the same world-class Argentine leather and premium quality. The white nylon thread is artfully hand-stitched in Buenos Aires. DON’T KNOW YOUR SIZE?A good rule when choosing a Zilker Belt is to go 2” larger than your pants' waist size. So if you typically wear size 34 jeans, order a size 36 belt. For odd sizes, we suggest ordering 3” larger to be safe (ex. – choose a size 38 Zilker Belt for size 35 jeans). Check out our Sizing Chart for more details.