Tested by the Cervelo Test Team, the Progetto X2 seat pad, will already have more than 500,000 kilometers of testing before it reaches the market. Made with 10 separate components, and 12 different phases in the manufacturing process, the X2 Progetto has been in development for nearly 3 years.
Click here for more details on the Castelli Progetto X2 Air Chamois

	Scott Mares from Crossbikereview.com says: "The company rocks customer service and so do the shorts. I wanted to see if Willy Wonka was back in the back working with these guys because this short is the 'All Day Gobstopper' of the short world. Get a pair and they will become your favorite short." Read the full product review on our Blog here.

Editorial Review from Bicycling Magazine, October 2011 issue
"The Endurance bibs offer much of the same stylish functionality as the brand’s top-of-the-line Body Paint bibs, including the Giro ++ elastic grippers on the leg openings, and Castelli’s patented X2 chamois, which stays comfortable all day. An Italian flag stitched into the bibs’ upper, along with the unmistakable scorpion logo, completes this unquestionably Italian package. The lower portion is carefully constructed to avoid placing seems in places that will bind or pinch, making the Endurance bibs exceedingly comfortable. Pairing these bibs with a complementary jersey will quickly and easily make you the best-dressed on your group ride."—David L’Heureux

	DOUG SAYS: Thanks for visiting Bicyclinghub.com.and choosing us for your cycling clothing needs. Why I choose the Castelli Endurance Bib I picked the Endurance bibs because it's price, $70 less than Body Paint Bibs and $50 less than Free Aero Race bibs, is the lowest price on a bib with the Progetto X2 pad. The Lycra is incredible, the white mesh braces are cool and the Progetto X2 pad seems to disappear from underneath you when you ride.

Bibshorts are found by the majority, if not all, to be the most comfortable option for a riding short - but this relies heavily on getting the right size. Please refer to the Size Chart Tab for advice and useful brand sizing information. Should you require any further information or assistance with bibshort sizing, call us toll-free at 1-888-817-8060 or e-mail us at Sales@bicyclinghub.com. Our cycling clothing experts will be happy to help!

Castelli cycling apparel is designed to hug all the curves of your body; For additional questions about sizing, call our cycling clothing experts toll-free at 1-888-817-8060 or e-mail us at Sales@bicyclinghub.com

	Top Five Reasons to Buy Castelli bib shorts from BicyclingHub.com: 5. Professional advice and excellent customer service. Passionate about cycling, our staff rides in and vigorously tests our products. Unsure about a size? Call our cycling clothing experts toll-free at 888-817-8060 or email your questions to customerservice@bicyclinghub.com. 4. Quality guarantee. All of our products carry a one-year warranty against manufacturers defects. No need to come unraveled—if there’s a problem, we’ll replace it at no cost to you 3. Free shipping on all U.S. orders over $70 and all Canadian orders over $150. Inexpensive rates for the rest of the world. 2. Hassle-free returns. Wrong size? Not what you expected? Gift recipient would prefer something different? No problem—we’d be happy to exchange or issue a refund (within 60 days of your purchase.) 1. Free swag! Let BicyclingHub.com butt'r your buns with a FREE trial size container of Paceline Chamois Butt'r. Offer valid on all men's and women's cycling shorts and bib short orders, while supplies last.

Fabric helps set the Castelli Endurance bib apart.

Energia fabric also has a ribbed knit surface that aids with aerodynamics. Like a golf ball, irregular surface technology improves aerodynamics and is used in cycling clothing to help riders slice through the wind.

Action fabric is a 210 gram microdenier PowerLycra with an 80% Nylon and 20% Lycra blend. The strength of Action fabric lies in it's soft feel against the skin, providing complete comfort, combined with it's high abrasion resistance and the durability this provides. This is particularly useful in the saddle contact area of the short.