While the front opening is the most visible part, Castelli has worked on every other detail to make this the perfect race suit for Team Sky. It's aero thanks to CFD based seaming and wind-tunnel selected fabrics. It's comfortable thanks to the body fabrics that will keep you drier and cooler than the simple Lycra fabrics used by some other companies. The lower portion of the suit is created from Team Sky's Free Aero Race bibshort, to make the most comfortable suit for your longest, toughest race days.
Besides the new fabrics and seam placement Castelli also worked on the pockets to make them better for racing. They're somewhat narrower for better aerodynamics but there are now 2 big pockets instead of 3 small ones, so they're easier to access in racing. The new Team Sky kit design will give the team a fresh look in 2019 with the dark ocean blue across the shoulders and collar fading into the black from the chest downwards. The blue shade is inspired by Team Sky's ongoing commitment to Sky Ocean Rescue, an initiative to help stop plastic waste ending up in the oceans.
On the rear of the jersey, the iconic blue stripe is included in recognition and celebration of the team's decade in the peloton.