Swimming in a wetsuit feels completely different from swimming in just a swimsuit. Whether you are preparing for your first triathlon or open water race, understanding how to swim effectively in a wetsuit can make the difference between a confident start and a stressful experience. The wetsuit changes your body position, your stroke, and even how you breathe. Learning to work with these changes rather than against them will help you swim faster and more comfortably on race day.
Why Wetsuits Matter
A wetsuit does two important things. First, it provides buoyancy. The neoprene material traps air bubbles that help you float higher in the water. This lifts your hips and legs closer to the surface, creating a more horizontal body position. For many swimmers, especially those who struggle with leg sinking, this can significantly improve efficiency and speed.
Second, a wetsuit keeps you warm. Open water temperatures vary widely, and even in summer, lakes and oceans can be surprisingly cold. A wetsuit traps a thin layer of water between the material and your skin. Your body heats this water, creating insulation that keeps you comfortable for longer swims. This warmth does more than just prevent discomfort. Cold water can cause your muscles to tighten and your breathing to become shallow and rapid. A wetsuit helps you maintain better control over your body and your race.
How Swimming Changes in a Wetsuit
The added buoyancy changes your body position in the water. Your hips sit higher, which is generally a good thing. However, this can also throw off your balance if you are used to swimming in a pool. Your upper body might feel slightly lower in the water, and you may need to adjust your head position to compensate.
The neoprene restricts your shoulder movement to some degree. Even a well-fitting wetsuit adds resistance to your stroke. Your catch and pull might feel less free, and your arm recovery over the water can feel constrained. This is normal. Most swimmers find they adapt quickly, but it takes practice.
You might also notice that your kick feels different. With your legs floating higher, you may not need to kick as hard. Some swimmers actually reduce their kick in a wetsuit to conserve energy. This is especially true in longer races where efficiency matters more than raw speed.
Getting the Right Fit
A wetsuit that fits poorly will ruin your swim. Too tight and it restricts breathing and movement. Too loose and it fills with water, adding weight and drag while reducing warmth and buoyancy.
The shoulders and underarms should fit snugly without cutting into your skin. You should be able to raise your arms overhead and rotate your shoulders without excessive pulling or bunching. The neck should sit comfortably against your skin. A little pressure is normal, but it should not feel like it is choking you. If the neck is too tight, you will feel anxious and breathless before you even start swimming.
Check the length in the arms and legs. The suit should not be so long that it bunches at your wrists and ankles, but not so short that it rides up during your swim. Most wetsuits are designed with extra length to accommodate your body position when swimming, so they may look slightly long when you are standing up. That is fine.
If possible, try on the wetsuit before buying. Move your arms in a swimming motion. Squat down. Twist your torso. You want to feel snug but not restricted. Remember that neoprene will loosen slightly as it gets wet and as you wear it more, but it should not feel uncomfortably tight when new.
Putting It On and Taking It Off
Getting into a wetsuit requires patience. Trying to rush usually results in torn nails, damaged neoprene, or both. Start with your legs. Gather the material and roll it up your leg rather than pulling it up in one motion. Use the pads of your fingers, not your nails, to avoid tearing the inside of the suit. Work slowly and pull evenly.
Once the legs are on, pull the suit up to your hips. Then work on getting your arms through the sleeves. Again, gather and roll rather than forcing. Once your arms are in, reach behind and pull the zipper cord over your shoulder. Most wetsuits have a long cord attached to the zipper so you can zip yourself up. Some people prefer to have someone help with the zipper to ensure it closes fully and smoothly.
After zipping, fasten the velcro neck closure if your suit has one. Make sure it is secure but not so tight that it chokes you. Adjust the suit around your shoulders and torso so it sits evenly and comfortably.
Taking the wetsuit off after the swim requires a different technique. Unzip the suit and pull it down off your shoulders as quickly as you can manage. Then peel it down to your waist. You can leave it at your waist during the run to the transition area, or pull it down to your ankles and step out of it before running. Either way, practice this in training so you know what works best for you. In cold conditions, getting the top half off quickly is a priority so you can get into your cycling gear and start warming up.
Adjusting Your Technique
Swimming in a wetsuit requires small adjustments to your stroke. Because your hips float higher, you might find that you can ease up on your kick. Focus on a light, steady kick that keeps your body stable and streamlined rather than providing propulsion. This saves energy for the bike and run.
Your arm stroke may feel restricted through the shoulder. To compensate, focus on a high elbow catch and a strong pull through the water. You may not get the same range of motion on your recovery, but you can still generate power with good technique in the underwater phase of your stroke.
Body rotation might feel different as well. The added buoyancy and material can make rolling from side to side feel less natural. Concentrate on engaging your core and rotating from your hips rather than just your shoulders. This will help you maintain a smooth, efficient stroke.
Breathing in a Wetsuit
Many swimmers feel slightly breathless when they first put on a wetsuit. The tightness around the chest and neck can create a sensation of restricted breathing even though your lungs are working fine. This is a psychological response as much as a physical one, and it gets easier with practice.
Start your swim at a controlled pace. Do not sprint off the start line. Give yourself time to settle into your rhythm and adjust to the feeling of the wetsuit. Focus on calm, steady breathing. Breathe out fully underwater so you can take a quick, efficient breath when you turn your head. Panicky, shallow breathing will make everything harder.
If you feel overwhelmed, slow down or stop briefly. Tread water, take a few deep breaths, and remind yourself that you are safe. The wetsuit is helping you float, so it is actually harder to sink than in a regular swimsuit. Once you calm down, you can resume swimming at a comfortable pace.
Practice Before Race Day
Never race in a wetsuit you have not practiced in. Your first open water swim in a wetsuit should not be on race day. Ideally, you should swim in your wetsuit several times before your event so you understand how it feels and how your body responds.
Practice putting it on and taking it off at home. Time yourself so you know how long it takes and what technique works best for you. This will reduce stress on race morning and help you move efficiently through transitions.
If possible, swim in open water with your wetsuit before the race. This gives you the chance to experience the buoyancy, the restricted movement, and the breathing sensation in realistic conditions. You can adjust your stroke, practice sighting, and build confidence. If open water is not available, wearing your wetsuit in a pool for a short session can help, though it is not ideal since pools are usually warmer and you might overheat.
Wetsuit Rules and Regulations
Different races have different rules about wetsuit use. In most triathlons, wetsuits are allowed if the water temperature is below a certain threshold, usually around 24 degrees Celsius. Above that temperature, wetsuits may be optional or banned. Some races create a middle zone where wetsuits are allowed but you will not be eligible for awards if you wear one. Check the rules for your specific race well in advance.
Wetsuit thickness is also regulated. Most race organizations limit wetsuit thickness to 5 millimeters to prevent excessive buoyancy advantages. Full-body wetsuits are standard, but some swimmers prefer sleeveless versions for greater shoulder mobility. Make sure your wetsuit complies with the rules of your race organization.
Taking Care of Your Wetsuit
A good wetsuit is an investment, and proper care will extend its life. Rinse your wetsuit with fresh water after every use, especially if you have been in salt water or chlorinated pools. Hang it to dry inside out on a wide hanger or draped over a rail. Do not leave it in direct sunlight for long periods, as UV rays can degrade the neoprene.
Store your wetsuit loosely folded or hanging in a cool, dry place. Avoid creasing it sharply or leaving it crumpled in a bag. Neoprene can develop permanent creases if stored poorly. If you travel with your wetsuit, fold it gently and do not pack heavy items on top of it.
Inspect your wetsuit regularly for tears, worn seams, or weak spots. Small tears can often be repaired with neoprene glue, but if the damage is extensive, it may be time to replace the suit. Treat your wetsuit with respect, and it will serve you well for several seasons.
Preparing for Non-Wetsuit Swims
Not all races allow wetsuits. In warm water events, you will swim in a regular swimsuit without the buoyancy and warmth of neoprene. This requires a different approach.
Without a wetsuit, your body position in the water will be different. Your hips will likely sit lower, and you will need to work harder to maintain good form. Your kick becomes more important for keeping your legs up. Train regularly without a wetsuit so your body adapts to swimming without the extra lift.
Warm water swimming also means you can overheat. Pay attention to hydration before and after the swim. In some cases, athletes feel warmer swimming without a wetsuit in hot conditions than they do cycling or running afterward.
Practice sighting and navigation in open water without a wetsuit as well. The feel of the water on your skin and the lack of buoyancy can make sighting feel different. The more you practice in race-like conditions, the more comfortable you will be when it counts.
Swimming in a wetsuit is a skill that improves with experience. The first time might feel awkward, but with practice, you will learn to use the buoyancy and warmth to your advantage. Take the time to find a wetsuit that fits properly, practice swimming in it, and care for it well. On race day, you will be confident, comfortable, and ready to swim your best.