EXCELLERATOR Cross Training Spartan Course Elite Size:X Large Supportive steel springs on both 2XU MR6535B BLKSRF XS Supportive steel springs on both sides provide firm support and full range of movement Open patella helps relieve pressure on kneecap Fully trimmed edges offer durability Sizing: Measure around center of knee Small Medium 12 16" (30 40 cm) Large X Large 16 20" (40 50 cm) Scratch resistant coating TACTILE ZONE: cross training gloves with a touch zone at the thumb and index finger which will allow you to continue to operate your smartphone or tablet while wearing your gloves Also equipped with a pull tab for quick donning