A replacement for the new Scarpa Maestrale RS model, the Scarpa Men's Pro Flex Performance Liner offers increased warmth and moldability with its high quality and dense Intuition Foam construction. Specifically designed for the anatomical shape of your feet, it offers an elastic strap over the instep with additional heel inserts for a more secure fit. It has the well-loved features of the double pull tab for boot fitting (who knows that struggle?) and additional lace tabs for an improved fit. The Pro Flex Performance liner allows you to be confident that your feet will still love you after putting them through the miles and vertical gains.