Zone3 Aeroforce X II Tri-Suit Review 2026: Is It Really the World’s Fastest Trisuit?
What to Look For
A triathlon race suit needs to work across three very different disciplines — it has to compress well enough in the water, remain aerodynamic on the bike, and feel comfortable enough to run a half marathon in. At the premium end of the market, suits like the Zone3 Aeroforce X II are built with one goal: making you as fast as possible across all three. The key factors to weigh up are aerodynamic fabric placement, swim flexibility, and pad comfort on the bike.
Key Features to Consider
- Aero fabric panels — where the suit sits close to the body, aero-specific ripstop fabrics reduce drag on the bike; where it needs to flex, stretch panels prevent restriction
- Chamois thickness — a 5–8mm pad is the sweet spot for long-course racing without adding too much bulk for the run
- Zip position — back zips are standard for aerodynamics; chest zips offer slightly quicker transition entry but can catch wind
- Sun and chlorine protection — look for UPF 50+ fabric if you are racing in warm conditions or training in chlorinated pools regularly
Our Top Picks
Best Overall: Zone3 Aeroforce X II Short Sleeve Trisuit (Men)
Zone3 collaborated with aero specialists NoPinz and the Boardman Performance Centre to develop the Aeroforce X II — and the result is a genuinely race-focused suit that delivers measurable watt savings on the bike without compromising run comfort. The short sleeve design reduces drag further than a classic singlet while keeping you cool in warm conditions. Tested in the wind tunnel and on athletes at ITU and IRONMAN level, this is a suit built to win races.
Best Women’s Race Suit: Zone3 Aeroforce X II Short Sleeve Trisuit (Women)
The women’s cut of the Aeroforce X II offers the same wind-tunnel-tested aero advantages with a fit tailored to female anatomy, including a higher waistline for core compression and a more accommodating chest panel. The fabric sits close without restricting breathing at race effort, which is one of the most common complaints with aero suits at this price point. For elite and competitive age-groupers targeting podium positions, this is the best women’s race suit Zone3 has ever made.
Best Budget Alternative: Zone3 Aspire Trisuit
If the Aeroforce X II sits above your budget, the Zone3 Aspire delivers solid all-round performance at a significantly lower price. It is not wind-tunnel optimised, but the construction is reliable and the pad thickness appropriate for sprint through Olympic distance racing. A sensible first race suit for athletes moving up from training gear.
Buying Tips
- Size down one from your usual workout clothing — triathlon suits are designed to compress and stretch back once wet
- Test the suit in training before race day: swim a few hundred metres in it and check nothing chafes on the shoulders or thighs
- Check the race rules on sleeve length — some triathlon federations have specific rules about tri-suit coverage for drafting-legal events
Care and Maintenance
Rinse in cold fresh water immediately after each use, especially if worn in the sea or a chlorinated pool. Machine wash inside out on a cold, gentle cycle. Never tumble dry — hang to dry away from direct sunlight to preserve the elastic fibres in the aero fabric panels. Avoid applying sunscreen directly to the suit fabric, as oil-based products degrade high-performance textiles quickly.
This article contains affiliate links. If you purchase through these links, we may earn a small commission at no extra cost to you. This helps support The Triathlete.
