Ergodyne’s ProFlex 550 knee pad has a low-profile spandex sleeve with breathable mesh paneling to fit comfortably under work pants for flexible, bulk-free knee protection. It is made of impact-absorbing PU foam.

Carhartt’s 103193 knee pads insert in users’ double­-front work pants, and the pads can go through at least 50 home wash and dry cycles without wearing out. They are compatible with men’s and select women’s double-front pants and bibs. 

Hultafors’ airflow knee pads feature layers of gel, high-density closed-cell foam and neoprene for added comfort. The airflow side panel design helps ventilate the kneepads and reduce heat build-up. There is an upper elastic strap with slip-in clip buckle fastener system for fit. It features an adjustable neoprene strap for stability.

Hultafors’ all-terrain knee pad has layered gel, high-density closed-cell foam and neoprene padding for all-day comfort. The accordion-style cover keeps the knee pad in place without restricting movement. It has a full-size, all-terrain cap design. There is a slot-and-dot button fastener system with flexible rubber straps for adjustments.

Emergent Safety Supply’s Allegro 6987 FlexKnee is ribbed across for easy flexing and comfort above the knee. The surface is grooved for nonslip stability and is constructed with inner foam rubber for greater comfort and water resistance. The rubber straps are adjustable. 

 48-71-6051 stabilizer performance knee pads feature a large flat cap for stability while working in a stationary location. The layered gel absorbs pressure and supports the knee. They are built with a hinged thigh strap for mobility. There are durable metal rivets, open cell foam and two secure adjustable buckles.