Palm: 3.5 mm of ES Super Control latex for excellent grip with 4 mm of backing foam. Palm Cut: Flat palm with wrapped thumb and Air Ventilation Management AVM stitched into finger gussets. Backhand: 4 mm durable PS latex plus 4 mm reinforced backing foam on the Shock Zone. Finger Support: 5 unremovable finger spines. Top performance in all weather conditions.