The exceptionally light sole balances power transfer and foot health for the high-performance, high-mileage cyclist . The breathable, supple, durable Lorica Microfiber Upper keeps feet comfortable with cooling mesh inserts and t he new heel cup is vented and reflective for added comfort and visibility. The Caliper buckle allows for easy on-the-bike fit adjustment and the soft instep closure system and padded tongue eliminate pressure points. Another feature unique to Sidi, the High Security Velcro® won’t shift or slip. The replaceable heel pad enhances walkability. The Genius 5.5 is available in Standard and Mega widths.