The Manera Magma 2.5mm gloves are pre-shaped for a better grip and to prevent forearm fatigue. The outer skin is waterproof and windproof to combat the wind chill effect, while the interior is lined with Magma fleece for unbeatable warmth and quick drying. The glove has a "donut" cuff to prevent splashing. F-One implemented a V-shaped reinforcement in the cuff so you can pull it on without damaging it.