Developed with the expertise of top pros including Thor Hushovd, Erik Zabel and Alexandre Vinokourov, the Ultra SL features a profiled full carbon sole for unbelievable light weight and low (7.5mm) stack height. Adidas proprietary Anatomical Energy Frame design improves the fit while helping to keep the weight down to a feathery 295 grams in a size 9. A micro-ratchet and new Fast Strap SL closure system ensure a comfortable fit that is adjustable and reliable. The Ultra SL even comes with its own storage bag!