The Spider is a superlight polyamide and steel instep crampon that may be attached to any boot or shoe regardless of size, without tools. Though not as technical as Gripper the Spider will likely be purchased and carried when the more expensive, heavier Gripper is too much. Spider may be used by hikers, hunters, firefighters, UPS drivers, alpine rock climbers (they will fit on rock shoes), soldiers, snow-making teams or anyone that needs to improve the security of their footwear when facing a variety of slippery conditions.
Purchase USD$45 or more and get free shipping. The Grivel Spider Crampon is available through Altrec.com.
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