Summers are getting hotter, and for those of us who need to ride at the hottest time of day, during our lunch breaks, we need kit that can help to keep us as cool as possible. The new A/C Bibshort was developed to allow the maximal amount of cooling and breathability while still offering protection from the sun.

Everything about these short focuses on keeping you cool. The sides and leg grippers use a closed mesh for maximal airflow to help cool you and keep you dry. The bib straps are as minimal as possible while still functioning to hold the short in place. The Progetto X2 Air Seamless seat pad, while providing all-day comfort, dries quickly. Everything about the A/C Bibshort is designed with the one goal of keeping you cool and comfortable on the hottest days.

Product Features:

• Closed-knit mesh side panels for maximum breathability and sun protection
• Mesh leg grippers with integrated silicone
• Minimalist mesh bib straps
• Progetto X2 Air Seamless seat pad
• UPF 50+

The Premio EVO W DT Bibshort has been engineered to provide the ultimate in long-distance comfort and to be your favorite bibshort ever. That's a big claim, but there's a lot of research and development in this short to back it up. The seat pad is central to the Premio’s exceptional comfort, and our top-of-the-line Progetto X2 Air Seamless Donna pad is actually two separate components: a soft, stretchy Skin Care Layer next to your skin, which has the sole purpose of preventing any rubbing on your skin, and, under that, the Cushioning Layer, which features two separate densities of foam along with breathable perforated gel inserts under the ischia bones and perineum.

Comfort continues through the construction of the short, with reduced seams and only three panels. We engineered a new fabric that changes based on the needs of various parts of the body. The lower leg has a raw-cut leg ending and rubberized yarns to guarantee a flat grip to keep the leg in place. The fabric becomes lighter in the thigh, while the four-way stretch provides just the right amount of muscle support. In the pelvis area, the compression and support increase to keep the seat pad and everything else in place. At the back there’s a thicker fabric to prevent any transparency issues. The premium fabrics extend to the bib straps. In droptail construction, the elastic straps are soft and stretchy to offer the perfect amount of support without being binding. We've finished off the Premio EVO W DT Bibshort with subtle logo placement that carries into the rest of our Premio EVO kit for a refined, modern look.

• Gradient-stretch woven fabric for the right support in the right place
• Woven fabric weighs 30% less than comparable knit fabric
• Soft, stretchy elastic bib straps with drop-tail design for easy nature breaks
• Integrated gripper elastic at leg ending holds short in place without need for additional silicone grippers
• Progetto X2 Air Seamless Donna seat pad
• Color: Black
• Size: S

This short gives you every reason to step up to Castelli. We have innovation in our DNA. We've brought you most of the innovations in a cycling short over the years: the first Lycra® shorts on the market, the first minimalist and flat bib straps, and the first flat leg grippers. All these advances have become industry standards, and we keep pushing and innovating in our high-end shorts. The Entrata short is where all that knowledge and experience trickles down into a short that just plain works. The fabric is just the right weight with just the right stretch and with a matte finish that looks just right. The KISS Air2 seat pad is just right, as is the GIRO3 leg gripper. And the short fits just right because we obsess over the fit of every short we make. We wanted this short to be just right for many years to come, so we stitch on the logos and stitch in the reflective panels on the back. The Entrata short is just right for you.

• KISS Air2 seat pad for all-day comfort
• Pro Dry matte Lycra® for good compression and moisture management
• 8-panel construction for perfect fit
• Rear reflective panels on lower leg
• GIRO3 engineered flat leg band
• Mesh straps for comfort and breathability

We've been pushing the envelope on lightweight shorts since 2011 but have butted up against the limits of compromising durability forever lighter weight. We needed to step back and find a better way. We examined what the short really needs to do: it needs to hold the seat pad securely in place while otherwise adding as little weight or fabric as absolutely necessary (without being transparent, obviously), and it needs to last a season of hard use. So, we engineered a brand-new fabric using a woven rather than a knit that shaves 30% in weight for the same level of support and non-transparency.

Then we worked with the world's leading mill to construct a gradient fabric that becomes increasingly lighter the farther down the leg it extends, with the last part weighing a mere 90 g/m2 compared to normal short fabric, which weighs around 220 g/m2. This fabric, while being insanely light, maintains a decent durability along with excellent abrasion resistance, at least against the saddle. We don't guarantee it against unplanned slides across the asphalt, so please keep the rubber side down! Note that while the short saves a mere 48 grams while dry, this means it also absorbs around 30% less moisture when you're sweating.

So, when you're sweating your way up the Alpe d'Huez you're actually saving closer to 150 grams. This short doesn't compromise on comfort. We use our top Progetto X2 Air Seamless seat pad, the spectacular striped mesh bibs from the Free Aero Race 4 Bibshort and a flat stretch woven leg gripper to keep everything in place. But it's the finishing that sets this short apart. The logos are embossed into the surface of the fabric for a very discreet rich tone-on-tone effect. With this short you don't need brightly colored logos to shout out that you've achieved the ultimate in cycling comfort and performance.

Product Features:

• The premium lightweight hot weather short
• Gradient stretch woven fabric for minimal weight with optimum support
• Ultralight fabric to reduce weight by up to 50% while improving durability
• Minimalist stripe mesh bib to minimize weight and keep you cool
• Integrated gripper elastic with exposed Lycra® to hold leg in place
• Embossed logos and stretch silicone scorpion heat transfers
• Progetto X2 Air Seamless seat pad