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T1 First Wave Pullover*

  • 37000
  • 11 reviews

See size chart


The First Wave provides ultimate comfort and eliminates restrictions often found in one-piece wetsuits. This is why the T1 First Wave is a triathlete's First Choice!

The two-piece design of the T1 Wetsuits offers more comfort and less restriction. The top and bottom are not attached. This means you have much more freedom of movement and there is no “torso-rubber stretch” or shoulder fatigue that occurs with one-piece wetsuits. All T1 models are sold as separates for a customized and personal fit. With up to seven sizes of tops and bottoms, you have 49 possible size combinations from which to choose. Other features we innovated many years ago include lower necklines and thicker rubber in the legs and hips to help float the largest bones and muscles in the body. More floatation here means more speed. T1 Wetsuits are not filled with gimmicks, just physics.

Sizing : Please refer to the size chart  button above for sizing guidance based on gender. If in doubt, email questions to 

New Features:

  • Zipper is lighter weight and corrosion resistant
  • Less-toxic bonding agent for people with skin sensitivities

Favorite Features Remain:

  • Flexible 2mm body and arms with a lower neckline for comfort
  • BIO-STROKE design puts your arms into a forward rotated shoulder position for a more efficient swim stroke
  • YKK® custom zipper is small, lightweight, and makes removal easier than ever.
  • GreenGoma™ #9 Rubber with Super Composite Skin makes the First Wave the warmest, fastest, most durable, flexible, buoyant, and the most comfortable wetsuit in the world today.
  • Lined with 4-Way stretch Nylon Lycra® for comfort and to minimize chafing
  • Seams are glued and blind-stitched, making them more durable than the rubber itself
  • Sleek graphics, no gimmicks
  • Sold as separates for a true customized fit
  • Sustainability is extremely important to De Soto, click here to learn how we are making a difference
  • T1 Wetsuits 100% Satisfaction Guarantee 
  • T1 Wetsuit product care and FAQs
  • Chlorine resistant treatment, but not recommend for repeated use in chlorinated water.

Proper swim stroke includes swimming with your head slightly tilted up. Imagine how your head would be if you were reaching for something in an upper shelf of a cabinet.  That said, the snug part may require a certain "getting use to.”  The other part to know is that it will also relax a little bit over time by wearing it.  It is important that the neck be snug so that water does not freely flow in while swimming.

Whether you like to swim for exercise or are on the swim course of a Triathlon, T1 Wetsuits offer you speed, comfort and buoyancy that will make swimming pure pleasure!


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Customer Reviews
5.0 Based on 11 Reviews
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Aaron B.
Canada Canada
Superb product, service, and experience

This made up half of my first wetsuit purchase. As an extremely tall and slender triathlete, there really weren't many options out there on the market. To make matters worse, for whatever reason, the majority of mainstream wetsuit companies have absolutely horrendous customer service. No fewer than three companies completely ignored several voicemails and emails. Enter De Soto. I sent Emilio and the team a similar message to other vendors, but what I got back was astoundingly good service. My measurements, needs, and goals were confirmed ahead of time, and I was off to the races. And race I have, with about six or seven triathlons now under my belt. It was obvious to me the moment I put it on what I'd gotten in terms of value. Not only is it an extremely stylish suit, it's rock solid in terms of quality and buoyancy. With questions and feedback, the entire team has been super responsive both by phone and email. They stand behind their superb products with even higher quality service. There's a reason the feedback here is unanimously five stars. The innovation, service, and quality of product will impress you; I guarantee it... and so do they!

De Soto Sport T1 First Wave Pullover* Review
William F.
United States United States
T1 pullover and bibjohn fast and comfortable

Performed 1000% better than expected, worked great in transition. Excellent customer service feedback to verify correct fit

Russ G.
United States United States
Great product!

I ordered the T1 First Wave pullover along with the Speedtube bottoms. Received a follow up email about my measurements and a call to discuss options based on being “on the edge” of size breaks. This call allowed me to decide to upsize and get a great fit the first time Excellent customer service Great product Thank you

Donavon L.
A suit designed to move with and for you

I spent a good bit of time in my new T1 wetsuit. It was the most comfortable, nonrestrictive, warm wet suit I've tried in my 10 years as an athlete. The bib john was MUCH easier to put on and was very comfortable. I had no issues with the straps chafing at any point in my swim. The best part is the top. Once you get your arms aligned with the arm seams, the rest is cake. The pull over design is easy and it just fits. A swimmers shoulders can not be restricted and this two piece allowed for full, non restrictive motion for my 6.2 mile swim. It's because of the two piece design. There is nothing that tugs on your crotch, there is nothing stretching or opposing the shoulder during the swim stroke. The suit moved with me, not against. As far as staying warm, it's by design that some water will insulate the body. Water came in through my arms and kept me very comfortable temperature wise. I never over heated, nor did I become too cold. I might also note that I had my fastest swim in this T1 suit. 3:30 hrs for 6.2 miles. Very happy with the DeSoto T1. Excellent product.

andrew h.
United States
Love At First Swim

I was always intrigued by the two piece De Soto wetsuit idea but I already had a perfectly good wetsuit (Zone 3 Vanquish) and thus kept talking myself out of trying the T1. But after a few 70.3's and several open water training sessions in the Vanquish I was getting super frustrated with my shoulders burning out way ahead of schedule. So I finally bought the T1 and oh my gosh did it deliver! I found everything I had read about this wetsuit to be true. It is much more comfortable and far easier to put on. Without having to battle against one piece of rubber I experienced ZERO fatigue in my shoulders and coming out of the water the suit peels right off. While swimming you do feel the top creeping towards your neck as you stroke. But I did not feel like excess water seeped in because of this and I had no issues with the suit rubbing against my neck. I am forever a convert and can't wait to line up in the T1 for future races.


Size Height Weight Male Chest
Male Waist Male Hips Female Bust Female Waist Female Hips
1 4’9”- 5’3”             145 - 160 cm 90 - 105 lbs            41 - 48 kg 29" - 31"                 74 cm - 79 cm 27” or less             69 cm or less 33" or less            84 cm or less 28" - 31"                 71 cm - 79 cm 26" or less              66 cm or less 34" or less              87 cm or less
2 5’2” - 5’6”             157 - 168 cm 105 - 125 lbs          48 - 57 kg 30" - 33"                76 cm - 84 cm 27" - 29"                69 cm - 75cm 34" -35"                  85 cm -90 cm 30" - 33"                 76 cm - 84 cm 27" - 28"                 67 cm - 72 cm 35" - 36"                 88 cm - 92 cm

5’4” - 5’8”            163 - 173 cm

125 - 150 lbs          57 - 68 kg 33" - 37"                83 cm - 94 cm 30" - 31"                76 cm - 81 cm 36"- 37"                  91 cm - 94cm 33" - 37"                 81 cm - 94 cm 29" -  30"                73 cm - 76 cm 37" - 38"                 93 cm - 97 cm
4 5'7" - 5'10"          170 - 178 cm 150 - 165 lbs           68 - 75 kg 37" - 43"                94 cm - 109 cm 32" - 34"                82 cm - 88cm 38" - 39"                 96 cm - 100 cm 37" - 42"                 94 cm - 107 cm 31" - 33"                 77 cm - 84 cm 39" - 40"                98 cm - 103 cm
5 5'9" - 6'4"            175 - 193 cm 165 - 190 lbs          75 - 86 kg 43" - 45"              109 cm - 114 cm 35" -  36"                89 cm - 93cm 40" - 43"               101 cm - 110 cm 42" - 45"               107 cm - 114 cm 34" - 36"                85 cm - 92 cm 41" - 42"               104 cm - 107 cm

6' - 6'6"                183 - 198 cm

190 - 220 lbs          86 - 100 kg 45" - 48"              114 cm - 122 cm

 37" - 40"                94 cm - 101 cm

44" - 47"               111 cm - 119 cm 44" - 46"               112 cm - 117 cm 37" - 40"          94 cm - 102 cm 43" - 44"               108 cm - 116cm
7 6'2" - 6'8"            188 - 203 cm 220 - 265 lbs        100 - 120 kg 48" +  123 cm + >40" +   103 cm + >47" +   120 cm + 46" +  118 cm + 41"+  103 cm + 46" + 117 cm +


The size chart above should serve as a general guide. If you would like assistance in determining the proper size, please send the following information to

WEIGHT - Accuracy helps us provide a more accurate size for you.
CHEST - Fullest part of breast, measured as the largest part of circumference right over the pectoral muscle.
WAIST -  Circumference measured at the belly-button line - this is NOT the same as your pants waist size.
HIPS - Circumference measured at the widest point, NOT at your hips where your belt may go. Typically this will measure just a few inches below your hip bones and around the largest part of the glutes.


If you do not have a tape measure and you need something to measure with, use a belt, or smart phone power cord, and a ruler.
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