US Patented From icy city pavements to your local trails, the redesigned FreeSteps6A(R) offers durable, ultra-light traction performance to those needing a simple anti-slip aid for outdoor activities. Utilizing high-quality stainless steel chains and spikes, the new FreeSteps6A(R) is a solid choice to support your active lifestyle. Features: GRIP ON ICY SURFACES - 21 stainless steel 1/4 inch spikes that are dispersed across a broad area WARRANTY - These spikes are built to last and are covered by a category leading two-year warranty DURABLE - Utilizing heat molded elastomer, this harness holds tight in the coldest of conditions EASY ON / EASY OFF - Designed to be easy to put on, fit securely when wearing, and simple to remove LIGHTWEIGHT - Hillsound&';s lightest crampons! The medium size are just over 12 ounces for a pair Tech Specs: Spike material: Stainless steel Spike length: 1/4" | 0.7 cm Number of spikes: 21 Harness material: Elastomer Weight (pair): 12.17 oz | 345 g Recommended Use: Fly fishing Trail running Winter walking Ice fishing