The VViViD Heavy-Duty Work Knee Pads are the perfect combination of rugged impact resistance, and breathable memory-foam cushioning - you can work all day and barely know you're wearing them. The PVC outer shell takes the beating so your knees don't have to. Adjustable neoprene straps above and below the knees ensure you won't have to keep re-adjusting their position, as you do with poorer quality protective wear. And with a breathable nylon mesh coated interior, to keep a dry, comfortable temperature, you can work both safely and comfortably with VViViD