Nike Snowboarding Zoom DK Boots Black/ Sail-Ream Red Colourway Premium compression molded, synthetic leather wrapped phylon midsole with embedded zoom air in heel. Ergonomic shell construction. Neoprene flex notched shell. Dual density outsole rubber extra grip. Space Blanket Strobel Technology in liner & shell. Notched liner lacing harness for flex enhancement. High Rebound Internal Backstay. Heat Moldable Liner for custom fit. Dunk inspired winglike ankle strap for added style. Developed with Danny Kass.