Men's OV Flex Sport Field BootTraditional styling totally redesigned for ultimate comfort and ease of movement. The new Flex system pattern design affords the rider the ultimate in movement with full flexion of the ankle area immediately with first wearing. Calfskin leather along with a combination lining the top cuff is pigskin for a traditional appearance, while the bottom is Dry Tex to keep your legs cool, dry, and comfortable. Added stretch panels on the inside of back zipper