Simple but far from basic, the proven performance of the DC Phase snowboard boots will have you locked in for seasons of shredding! DC snowboard boots feature durable synthetic uppers. Traditional lacing for optimal shell closure and fit. Snow basic insole for comfortable, cushioned wear. Red Liner: Technical moisture and temperature management lining to keep feet warm and dry. Lace closure for a secure fit. Multi-density EVA construction provides all-day comfort. Foundation UniLite outsole for lightweight and shock dampening performance. Flex rating: 5/10 Imported. Measurements: Weight: 2 lbs 1 oz Shaft: 11 in Product measurements were taken using size 11, width D - Medium. Please note that measurements may vary by size.