We fully redesigned the Aurora GTX BOA® boot for riders facing both high speed trails and backcountry powder, with increased insulation to achieve greater warmth. The outsole is highly durable and designed for walking comfort, and the BOA® lacing system ensures precise fit. Features Gore-tex guaranteed to keep you dry 800 grams 3m™ thinsulate™ water resistant insulation michelin® rubber outsole for durability boa® h3 coiler system boa® ss2 lace for durability new dial offers better grip open lacing system sheds debris moisture wicking breathable liner half-size insert for optimal fit removable moisture wicking ortholite insole durable midsole with walking comfort gore-tex membrane keeps insulation dry scratch rubber toe and heel reinforcement lower d-ring to prevent cuff rising