The Structural 12" Zipper/Speed Lace model combines the advantages of a lace up for a custom fit and the convenience of a zipper. A unique molded "batwing" zipper grip makes it easy to get going quickly.
The Black Diamond Comfort Fit Form ("Last") used to construct these boots has been designed for maximum comfort and accurate fit. In addition, the Enersole System includes a high-density polyurethane midsole that absorbs energy.
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