This Gray SmithShaper Economy Knee Mat / Exercise Pad is known for its firmness and it's 11" x14" x 1" size. It protects knees but is not as soft nor as flexible our black SmithShaper SUPER PAD Exercise Mat / Kneeling Pad. However, this firm pad can also be used with the SmithShaper Ab & Squat Roller Exerciser (search on B01G8FK7V2) or any ab roller / ab wheel. This affordable SmithShaper exercise pad is 1" thick and 14 inches wide/, It weighs only 6 ounces. The odor resistant and shock absorbent SmithShaper Economy kneeling pad pad provides protection for your knees and elbows and eliminates pain during floor workouts or other activities. This thick and firm water-proof exercise pad / kneeling pad prevents body parts from coming in contact with hard or rough surfaces. This SmithShaper Economy Exercise Pad is compact and portable and easily slips into a backpack or gym bag. This workout pad is good for floor exercise as it's firm enough to enable good balance and support while also providing padding to prevent direct contact with the floor when performing cross-fit, pilates, yoga or ab roll-out exercises. It also doubles as a mini Yoga Balance Pad. It provides protection (for knees, feet, elbows, forearms, hands, buttocks, and head) because its IXPE and EPE properties combine to provide shock absorption. These materials also provide a superior ability to repel oil and sweat while resisting odor retention. The SmithShaper Exercise Pad is constructed of several layers of high density, environmentally friendly, expanded polyethylene material.