Sidi Women's T-5 Air Triathlon ShoesPush your triathlon performance to new heights with the help of the Sidi Women's T-5 Air Triathlon Shoes. The stiff sole makes for super-efficient power transfer, while wide opening and straps make for super-rapid transitions. A great Triathlon specific cycling shoe must be quick to get into and deliver comfort and outstanding pedalling efficiency for both short course events right through to Ironman biking distances. The Women's T-5 Air Triathlon Shoes deliver exactly that. Immediate comfort comes by the way of the advanced and eco-friendly upper material - 'Politex'. This material gives you a supple and comfortable fit and, thanks to its unique construction, is highly resistant to ripping, abrasions, stretching and fading. It's the perfect choice to keep the shoes in perfect condition for all your training and triathlon racing needs.For lightning-quick transitions, the Women's T-5s feature a wide foot opening that's quickly adjusted to your preference via the dual strap system. The heel loop makes it impressively easy to get your foot in place too, even on the go, letting you get a jump on your competitors. With the Sidi heel cup, you'll also enjoy a solid and stable pedalling platform with your foot held in just the right position even during longer events.12 Carbon Composite SoleOnce you're on the bike, the 12 Carbon Composite Sole provides instantaneous power transfer, getting you up to speed with optimal efficiency. The blend of nylon and carbon fibre gives a sole that is both rigid and lightweight letting you maintain your speed without power loss. The carbon fibres also ensure the stiffness rating won't degrade over time or be affected by heat or humidity. A performance sole unit engineered to last and last.Cleat GuidanceThese Tri Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitDual-strap adjustment12 Carbon Composite soleSidi Heel CupReplaceable heel padPull tab on heelUpper: Politex eco-friendly3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.