Sweater Vest / Belt Squat VestSweater Vest Belt Squat Vest The Sweater Vest is a long time idea that Spud has been wanting to perfect. Spud Inc was the first innovator of the belt squat belt in the early 2000s making one that was comfortable and long lasting. The belt squat became a main stay in many training regimes over the next two decades and became the Gold Standard of Belt Squats Belts. But with the times always moving ahead, we pioneered then the front squat harness to