Castelli Superleggera Bib ShortsCastelli have always been pioneers of cycling shorts for very hot weather. The Castelli Superleggera Bib Shorts are their very latest development, pushing fabric technology further than ever to deliver the best in lightweight hot-weather performance.Scorching PerformanceCastelli have worked from the ground up, looking at new ways to make the Superleggera Bib Shorts as light as possible, highly breathable and yet maintaining durability. To this end, they start with a unique woven fabric rather than standard knit. It’s some 50% lighter than usual cycling shorts fabric and yet offers excellent muscle support and non-transparency. The woven nature also allows Castelli to grade the weight seamlessly from the top to to the leg ends – the lower part of the leg weighs a mere 90 g/m² compared to the usual 220 g/m² of standard cycling shorts. This lack of weight contributes to more comfort as temperatures rise. The shorts also absorb less moisture for greater comfort and less on-the-bike weight. At just 114grams they’re very light anyway but because they absorb 30% less moisture, they remain light even as you sweat. When you’re heading uphill every little bit of weight saved counts. While being barely-there light the fabric is durable and abrasion-resistant against the saddle too – though something this light won’t like you hitting the tarmac so ride safe and rubber side down. The bib section of the shorts is borrowed from the Free Aero Race 4 Bib shorts for perfect support, comfort and moisture management while stretch-woven grippers keep the shorts locked in place over the thighs.Progetto X2 Air Seamless Seat PadLet’s look at the Progetto X2 Air Seamless seat pad in more detail and see just why it’s so incredibly comfortable. The first contact point against the skin, the upper skin-care material, is now seamless and even softer than previous versions letting you enjoy smooth and chafe-free pedalling. The next layer, Castelli’s infinitely variable thickness padding, imparts just the right level of support where you need it, thicker under the sit bones and thinner on the sides and under the perineum – the result is intense comfort with reduced bulk. Lastly, to really push home superior comfort levels, perforated viscous padding is added under the highly sensitive ischial and perineum pressure areas, offering luxurious support when you’re on the saddle for hours on end. Features:Materials: 71% Polyamide, 29% ElastaneGradient stretch woven fabric for minimal weight with optimum supportUltralight fabric to reduce weight by up to 50% while improving durabilityMinimalist stripe mesh bib to minimize weight and keep you coolIntegrated gripper elastic with exposed Lycra® to hold leg in placeEmbossed logos and stretch silicone scorpion heat transfersProgetto X2 Air Seamless seat padWeight: 141g (Large)Suggested Temperature range: 20 to 40 degrees CBuy Castelli Clothing from Chain Reaction Cycles, the World’s Largest Online Bike Store.