Most bar pads use foam such as EVA (Ethylene Vinyl Acetate) or high-density NBR foam for cushioning. Countertop-style bar mats are typically made of silicone.
Bar pads are used for upper-body moves like barbell and dumbbell curls and for lower-body exercises such as squats, hip thrusts, lunges, and glute bridges.
Product details show compatibility with standard and Olympic-style barbells, and some pads also list fit for Smith machine bars.
Common attachment methods include slip-on or quick-fit sleeves, adjustable straps with Velcro (hook-and-loop) closures, and non-slip surfaces to help keep the pad secure during movement.
Listings commonly describe high-density foam cushioning. Some pads specify a 1.5" (1 1/2") foam core for added comfort and pressure relief. Thickness and firmness vary by model.