Season after season, the team favorite Burton Ion boot squashes everything in sight with the ultimate in plush precision! Speed Zone Lacing System is powered by Burtons exclusive New England ropes. 1:1 firm flex PowerUP tongue. Comfort: Total Comfort Construction. Outer shell pressure relief panel. Snow-proof internal gusset. Aegis antimicrobial coating. Liner: Life Liner. DRYRIDE Heat Cycle lining. Ultralon Performance Foam. Tuff Cuff. Cushioning: AutoCANT cushioning. ReBounce cushioning. Sleeping Bag Reflective Foil. ESS Support Shank. Level 2 molded EVA footbed. Outsole: Low-profile EST optimized midsole. Outsole rubber contains recycled content. Shrinkage footprint reduction technology. Imported. Measurements: Weight: 2 lbs 10 oz Shaft: 10 1 4 in Product measurements were taken using size 11.5, width D - Medium. Please note that measurements may vary by size.