Features: Flex Rating 3/10 - Provides a soft and forgiving feel BOA Fit System with M3 Dial - gives DC boots the perfect fit with the turn of a dial. Linerless Construction - Built in liner ensures the perfect fit Snow Basic Insole - Provides comfort and durability for the long days on the slopes Tech - Youth insole system allows for room to grow into the boot. Worn only 2 times ( my son outgrew them )