T1 First Wave Concept 5 Pullover*
FWC3
If your arms are bigger, you'd swim faster! If you could float more, you'd swim faster! This pullover incorporates both concepts and is legal in Ironman®, 70.3®, USAT, and ITU sanctioned events. T1 First Wave Concept 5 and T1 First Wave Pullovers are identical with the exception of the sleeve thickness. Concept 5 has 5 mm sleeves and the First Wave has 2mm sleeves. The difference is like adding about 3-4 additional fingers of surface area to each hand. The best way to see how significant that difference would be is to try swimming with just one or two of your fingers open and the others bent in (like making a peace sign).
In trying to determine if the T1 First Wave Concept 5 would better for you than the T1 First Wave Pullover, it would depend on the answer to these questions:
- Do you consider the water you swim in to be cold?
- Do you get cold easily when swimming?
- Do you have a medium to strong glide phase in your stroke? In other words to you swim with a bit of a catch-up stroke where one arm is out in front of you until the other arm is in the recovery phase and about to enter the water?
- Compared to the rest of your body, do you consider yourself to have thinner arms?
Sizing : Please refer to the size chart for sizing guidance based on gender. If in doubt, email questions to contact@desotosport.com.
The two-piece design of the T1 Wetsuits offers more comfort and less restriction. Because the top and bottom are not attached, 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 more 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.
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 5mm 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!
PRODUCT CODE: FWC2
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I’m still working on not getting a neck rash with my top suit, I’ve cut down the collar, but on the inside of back there is a tab that appears to hold the collar together, so I cut around it, can you send me a replacement tab and glue. I’ll cut off the old tab and mount the tab on the outside, to hold the collar together. The bib John is working great. To protect my neck, do you have a rash guard with hood included?

Great. The top is super warm. Customer service was excellent as always. This is my third top and always impressed with customer care.

I just competed in an Olympic triathlon in New Hampshire this weekend wearing the T1 First Waver Pullover along with a pair of SIM shorts. The pullover was very comfortable, and fit like a glove, and was much thinner and more flexible than my old thicker and bulky full Xterra wetsuit. I was able to swim without feeling constrained, as the material made it easier than the full wetsuit on each and every stroke. It was also a lot easier to get on and off in transition than the full wetsuit (even with the SIM shorts), and I can't recommend the T1 First Wave more highly. In addition, DeSoto worked with me to replace a smaller size that was too tight with a better fitting pullover, and their customer service was fantastic. I couldn't be happier with the product and the service provided.

After having received a size 5 which was too snug, I returned it and exchanged it for a size 6 which fit much better. Customer service was very prompt and the transaction, including the exchange was very easy. The pullover is very comfortable, and is made of a slightly thinner material than typical wetsuit, making it easier to put on and take off, and it is very comfortable in the water. What's most impressive is that it seals tightly to my sim shorts, which I wear separately. I've used so far in a lake, but looking forward to taking it to open ocean swim. I can't recommend this pullover more strongly.
T1 WETSUIT SIZING INFORMATION IMPERIAL / METRIC
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 |
3 |
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' - 6'6" 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 contact@desotosport.com.