Inspired by the European sport of randonneuring the all-new Audax shoe has been specifically developed for long rides spent chasing far off horizons. & from a design standpoint it strikes the optimal balance between comfort & efficiency making it ideal for anyone exploring their limits across anything from unmaintained back roads to smooth tarmac. Body Geometry™ sole & footbed are ergonomically designed scientifically tested to boost power increase efficiency & reduce chance of injury by optimizing hip knee & foot alignment Standard Fit for on-bike support & all-day comfort Low profile heel provides secure fit & relieves Achilles pressure for free range of ankle motion Supple Micromatrix™ synthetic leather with laser perforated venting with reflective elements for visibility Boa S2 dial for on-the-fly micro-adjustment backed by the Boa Lifetime Guarantee Powerline carbon/composite sole for light stiff power transfer: Stiffness Index 11.0 Combine Body Geometry shoes footbeds & wedges to maximize performance benefits Replaceable heel tread & Boa Snap dial 3-bolt cleat pattern fits all major road pedals Widths available Approximate weight: 250g (1/2 pair 42)