Thanks to a sleek design and silky fabric, the Castelli Core is one of those tri suits you just can't help but feel fast wearing. The KISS Air chamois pad is also one of the best on this list despite its fairly thin design, and the unique speed hooks that keep the top from riding up during the swim and bike only add to the top-notch aerodynamics. On the downside, it isn't the most breathable and is probably best suited for short course events when speed is a top priority.
Taking a nature break in a full tri suit can sometimes be a problem. The new Orca 226 features an open waist that comes in handy during transitions and when those quick toilet breaks are required. In terms of comfort, the Stretchskin fabric is one of our favorites for its freedom of movement and overall feel in the aero position on the bike. Our lone complaint was with the zipper, which lacks a guard on the backside and has the potential for irritation during longer events.
Marc Lindsay is a longtime endurance athlete with more than 25 years of experience running and cycling. He has completed marathons, ridden century rides, and competed in collegiate cross country. He previously served as a cycling and triathlon editor at ACTIVE.com, and his writing has appeared on MyFitnessPal and Polar.com, among other digital and print publications. He holds a master’s degree in writing from Portland State University and resides in Chicago, Illinois.