Versatile: Can be combined with a variety of footwear options (incl. insulated boots) and be used in several different types of settings; Reliable grip and comfortable: 21 stainless steel 1/4 inch spikes that are dispersed across a broad area; Durable: Utilizing heat moulded elastomer, this harness holds tight in the coldest of conditions; Easy to get on and off: Designed to be easy to put on, fit securely when wearing, and simple to remove; Lightweight and packable: Hillsound's lightest crampons! The medium size are just over 12 ounces for a pair