Get ready to shred up the mountain in the 86 FT '13 from thirtytwo. Leather and textile upper with a flex rating 5/10, which offers a soft yet controlled flex. Articulating Cuff is an advanced shell construction that creates high-performing, smooth-flexing boots that are much easier to lace and more durable. There is also less shell distortion, resulting in consistent heel hold through the full flex range. 3D Molded Tongues wrap around your foot for easier lacing, improved fit and heel hold, giving you the ability to control the stiffness of the boot for personalized flex and improved responsiveness. Independent lacing eyestays create optimal leverage as you tighten your laces, so the more you wear it, the better it wraps. Internal lacing system. Level 2 Liner is a dual density liner with outer-density Ultralon foam and inner density sponge EVA foam for added comfort and warmth. Anatomical EVA overlays in heel for optimal heel hold. Lacing system with Lace Lock for improved heel hold and fit. Aegis antimicrobial coating to eliminate odor. 100% heat moldable for custom fit. Level 1 molded Ortholite footbed provides spring-back technology retaining 95% of its thickness over time and won't flatten out. Foam contains recycled rubber powder to TR3RD LIGHTLY. Fuzzy topsheet for warmth and comfort. STI Evolution Foam outsole provides a better cushioning than traditional foam materials and dramatically reduces boot weight by removing the heavy rubber outsole, making the boot 15% to 40% lighter. Measurements: ; Weight: 2 lbs 4 oz ; Circumference: 13 in ; Shaft: 13 in ; Product measurements were taken using size 12, width D - Medium. Please note that measurements may vary by size.