The Atomic Hawx Prime 130 S is a stiff performance ski boot made for hard charging alpine skiers. This boot boasts an aggressive flex, and medium last to fit most foot sizes. Its Prolite construction is made of True Flex material with an Energy Backbone that maintains consistent flex over many uses. The Hawx Prime 130 includes a Memory Fit 3D Platinum liner that is fully customizable. The liner also has 3M Thinsulate insulation to help keep you warm on the slopes. A solid power strap and four buckles round out this alpine ski boot.