All components of the Jack briefs are made of very thick Ace material, including the front. The seams on the legs are higher than the Ace models, allowing for more leg support. These seams also tend to make squats look deeper than they actually are. The legs are turned on the sides, even more than the Ace briefs. This new briefs combine the best attributes of polyester and canvas. These qualities in briefs help to stop the squat at depth and give rebound. Most briefs can only do one of those things, but the Jack does both. Entirely new stitching, cut, and design make the Jack absolutely the best briefs on the market today.

Can't find the right size? Order a custom tailored order