ION's Open Palm Mittens are a great choice for windsurfing and other windsports to prevent cramping in the arm. The open palm mitten ensures a good grip and warmth as it keeps the wind at bay. Thanks to the elongated cuff, cold water doesn't get a chance to get into your suit. Features Pre-Curved: pre-shaped design provides wind protection even when your fingers are not slid inside the mittens Palm opening: with Lycra binding for easy in and out of fingers and maximum grip on the boom/bar Elastic band: Velcro Closure around the wrist Flat_Lock: flexible, non-irritating seams