How to Choose Between a Fullsuit and a Sleeveless Triathlon Wetsuit

Wetsuits come in two major categories: full-sleeve and sleeveless. A full-sleeve (also called a fullsuit) triathlon wetsuit has neoprene sleeves that extend all the way to the wrist, while a sleeveless triathlon wetsuit stops at the shoulders, much like a tank top. Both styles feature full-length legs, rear zippers, and similar design elements aimed at enhancing buoyancy, hydrodynamics, and warmth.

Note, like the Vengeance Fullsuit and Vengeance Sleeveless, the legs are cut about mid-calf for easy on and off.

Deciding between a full-sleeve and sleeveless wetsuit depends on factors such as water temperature, fit, flexibility, buoyancy needs, and personal comfort. Here’s how each type stacks up.

A full-sleeve wetsuit offers better buoyancy, improved hydrodynamics, and added protection from external elements.

1. Extra Buoyancy and Lift

Neoprene sleeves add additional buoyancy to the upper body, helping to keep arms and shoulders higher in the water. This reduces drag and can lead to a more efficient swimming stroke. Even though the sleeves are typically made from thinner, flexible neoprene to maintain shoulder mobility, they still contribute to overall flotation and a more streamlined body position.

2. Enhanced Hydrodynamics

Just as Olympic swimmers wear high-tech, skin-tight suits to reduce resistance, a full-sleeve wetsuit provides a smooth, streamlined surface that reduces drag. The tight sleeves prevent water from catching on your arms, allowing for a faster and more efficient swim.

3. Protection from External Elements

In open water, there’s always the chance of encountering jellyfish, sea lice, or rough water conditions. A full-sleeve wetsuit acts as a protective barrier, reducing the likelihood of irritation or stings. If you’re racing in colder or more unpredictable waters, a full-sleeve suit offers an added layer of defense.

A sleeveless wetsuit has its own advantages, particularly in terms of less insulation, better shoulder mobility, and a more forgiving fit for different body types.

1. Ideal for Warmer Water

The USA Triathlon (USAT) wetsuit legal cutoff temperature is 78°F (25.5°C), and for many triathletes, wearing a full-sleeve wetsuit in warm water can lead to overheating. NOTE that rules change so you’ll need to check with USAT and your race director, like Ironman (World Triathlon Corporation). A sleeveless wetsuit allows for better temperature regulation, as the open arms and exposed armpits prevent excessive heat buildup while still providing core buoyancy.

2. Greater Shoulder Mobility

One of the biggest complaints about full-sleeve wetsuits is the feeling of shoulder restriction. Even with the most flexible neoprene, some swimmers feel their range of motion is limited. A sleeveless wetsuit eliminates this issue, making it easier to extend your stroke fully and swim with less resistance.

Also of note here is that a great-fitting fullsuit should give you a full range of shoulder motion. Usually this is with the higher end wetsuits. Equally important is that a good-fitting mid-level wetsuit is always better than an ill-fitting high-end wetsuit.

3. Better Fit for Athletes with Larger Upper Bodies

Athletes with muscular shoulders, broad chests, or larger arms may find that a full-sleeve wetsuit feels too tight and restrictive. While wetsuits should fit snugly, an overly constricting fit can cause discomfort, limit breathing capacity, and lead to shoulder fatigue. A sleeveless wetsuit provides a more forgiving fit, allowing for easier breathing and greater comfort during the swim.

4. Easier Transitions

Sleeveless wetsuits are generally easier to put on and take off, making T1 (the swim-to-bike transition) a bit faster. With no sleeves to wrestle with, removing a sleeveless wetsuit can sometimes save precious seconds in a race setting. There are naturally “tricks” to taking off a fullsuit which eliminate the loss of any time.

The decision between a full-sleeve and sleeveless wetsuit comes down to personal preference, water conditions, and your specific swimming needs.

If you frequently race in cooler waters or prioritize speed and buoyancy, a full-sleeve wetsuit may be the better choice. However, if shoulder flexibility, breathability, and comfort are more important to you, then a sleeveless wetsuit could be the way to go.

For many triathletes, owning both a full-sleeve and sleeveless wetsuit is the ideal solution, allowing them to adjust based on race-day conditions. But if you need to choose one, consider your training environment, body type, and personal comfort preferences before making a decision.

Still unsure? Try testing both styles before committing to a purchase.