Easy to use with almost any shoes or boots, Kahtoola MICROspikes deliver unrivaled traction on icy winter trails—and they're small enough to fit in a pocket. Ice traction cleats for winter hiking & backpacking, hunting, ice-trekking, ice fishing, and icy trail & road running. Designed to perform like snow chains for boots, the MICROspikes are ideal for use when safety is paramount; trusted by forest park rangers, EMS & first responders, firefighters, police, CHP & sheriffs, surveyors, and ski resort lift operators & snowmaking & snowplow teams. Shoe and boot ice grips for winter backcountry, sledding adventures, and everyday icy roadways. Features *Twelve 3/8 in. hardened stainless-steel spikes per foot dig into icy terrain *Durable harnesses with reinforced eyelets *Integrated toe bails hold spikes securely in place *Ergonomically shaped thermoplastic elastomer harnesses attach securely to a variety of footwear and retain their elasticity down to -22°F (-30°C) *Welded stainless-steel chains for traction and packability *Raised heel tabs for easy on/off *Tote sack included; tote sack measures 5 x 3 x 2 in. *Medium fits Women's shoe sizes 9–12 / Men's shoe sizes 8–11 / Euro 40–44