These are Burton Axel snowboard boots in size 5.5.
Burton Axel Snowboard Boots - Women's – To make a boot this light, most companies sacrifice durability and rideability in exchange for mere ounces. For Burton, compromise simply isn’t an option. The hyper-mobility of a soft yet supportive flex, potent cushioning, and incredibly simple lacing, this boot has everything, including an EST™ midsole designed to bring you even closer to the action.
Lacing: Speed Zone™ Lacing System for True Zonal Lacing Control.
Liner: Flex™ 2 Liner with True Fit™ Design and Plush Cuff™ 1.0.
Cushioning: Lightweight, Low-Profile EST Optimized Midsole with B3 Gel Cushioning.
Flex and Response: Soft-Flexing Shell Materials, Articulating Cuff, Flex Spine™ Backstay, and Medium Flex Thin Profile 3D® Molded Tongue.
Comfort: NEW Ultra Cush Park 2 Molded 3-Layer EVA Footbed with Aegis™ Antimicrobial Coating.