Flex Booster 2K underwear A single-species Aspen Core helps

A single-species Aspen Core helps to make this softer flexing twin predictable and pressable

making them ideal for cold-weather conditions

delivering the epitome of comfort

these protective

INTERNAL & EXTERNAL J-BARS (LINER) - Adding J-Bars to a liner helps add structure and reduce heel lift

Flex Booster 2K underwear A single-species Aspen Core helpsDesigned exclusively for Deeluxe boots, the Flex Booster is an optional upgrade that allows you to fine tune your boots stiffness to match your riding style. Whether you're carving at high speeds or lapping the park, the Flex Booster helps customise your flex for optimal performance. Available in 2K (Medium) and 3K (Stiffer) for a progressive, responsive feel.