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The world's first trisuit and skin suit with a fly!  Finally, you can have bathroom relief without unzipping or undressing.


The comfort, performance and functionality you've come to love in our Riviera Tri Shorts and Tri Bib, is now available in this amazing Sleeved Riviera Trisuit!

Sizing: Please refer to the size chart button above for sizing guidance. 
Fit Type:
Fit Note –
Triathlon apparel is meant to fit next-to-skin. This is to eliminate potential chafing, and unnecessary drag during the swim, bike and run. If you’re not comfortable with this type of fit and or are between sizes, we recommend sizing up. Garment will relax slightly once wet. If you have a longer torso we recommend going with the Forza Flisuit FFT 

Features & Benefits:

  • Fli-fly™ hidden fly just above the pad, in front for quick on-the-fly bathroom “relief.”
  • 16" straight zipper (we eliminated the Snake-Zip) for easy ventilation on the go
  • 7mm Clasico Integrated Pad has 4-way stretch, is soft next-to-skin, has no seams to eliminate chafing, and offers antimicrobial properties.
  • 1" longer inseam than previous version (RTTS)
  • Forza Compressor leg panels help reduce delayed onset muscle fatigue
  • 3-Inch Mobius Comfort Compression Band offers equally graduated compression around the legs, so you get the same support with no tightness and squeezing.
  • Skin Cooler 90™ fabric throughout upper body and any part of the garment that has the printed design will keep you cool and comfortable
  • Liftfoil3™ center panels make swimming without a wetsuit faster!
  • Two Waterlid™ Pockets - one on side of each leg. These pockets are hydrodynamic when swimming without a wetsuit and provide storage solutions for the bike and run. 
  • Black modesty panels in the crotch area to eliminate saddle marks and offer a flattering appearance.
  • Swim, bike, and run in comfort without changing! Race in this kit under your wetsuit or without a wetsuit.
  • This environmentally-friendly innovation is completely free of solvents and the dyes used have no VOC.
  • Not recommended for repeated use in a chlorinated pool
  • WTC Legal
  • Made in USA

GREAT NEWS: Sleeved Trisuits are now legal for use in Ironman and 70.3 races, and it remains legal in many other races not owned by WTC. This trisuit was designed for this very purpose, with hydrodynamics as a factor, not just aerodynamics. 

Inseam lengths:
  •      Small: 9" (22.86cm)
  •      Medium: 9.5" (24.13cm)
  •      Large: 10” (25.40cm)
  •      XLarge: 10.5" (26.67cm).

What makes ours different?  Our Skin Cooler fiber is designed to feel and perform like silk (from a silkworm).  Through Biomimicry, we and created a synthetic silk.  It will keep you cool in hot weather and cooler when it is wet.  Put it on and you will instantly feel the cool sensation.  Wet it and you will notice a drop in the surface temperature of the skin between 7 and 10 degrees.

A MEDICAL TESTIM0NIAL:  We received this letter from Dermatologist and Mohs Surgeon Dr. Michael Bax.* 

 I am an avid runner and triathlete and I recently discovered your Skin Cooler products, of which I'm a huge fan.  I have been wearing them for a few months now and couldn't be happier.  I am a dermatologist and Mohs surgeon at Roswell Park Cancer Institute in Buffalo, NY.  Every patient I see is plagued by basal cell carcinoma, squamous cell carcinoma, or melanoma.  I recommend your products to my active patients on a daily basis.  It allows them to continue their active lifestyle while protecting themselves from the sun. I find your product to be far superior to all other cooling and sun protective lines.  I truly appreciate your efforts and innovations. 

Michael Bax, MD 
Roswell Park Cancer Institute 
Scott Bieler Clinical Science Center 
Buffalo, New York

***Dr. Bax has no financial investment in De Soto Sport and was not solicited nor compensated in any way for his letter.

Note: No garment should ever be a substitute so we always recommend you wear sunscreen underneath these, and all, products. It is crucial to keep in mind that a sunscreen's (whichever brand you may choose) SPF/UPF rating refers only to its ability to protect skin from UVB radiation. Because we know that UVA damage can be just as insidious, it is essential for the health of your skin that you use a sunscreen that contains the UVA-protecting ingredients of titanium dioxide or zinc oxide.


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Customer Reviews

4.9 Based on 19 Reviews
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Donavon Lewis

All day IM distance comfort kit with whistles and bells

I wanted to provide a review after race day to give an accurate account after IM race number 9. Here are my thoughts thinking about other brands in the past to this kit. 1. The kit just looks great. My Sherpa's found me with ease in the crowds. The patterns and color combinations are great. 2. The Kit stitching and fabric durability is incredible. This kit adapts where you need it. A small tug on the stitching and it relaxes where you need it. 3. The *** hole for guys (the fly) ... this is amazing in the mornings after you have already 'gone to the bathroom' and need to *** 600 times before you race. 4. Very comfortable to bike and run in, the kit moves with you, not against. 5. POCKETS!!!!! Enuff said. The pockets held my 10oz nutrition bottle. Let that sink in. No more Batman looking fuel belt !!!! 6. Built in sun screen. In Boulder, my legs were burned but not anywhere the kit covered me. 7. The kit breathes and helps regulate your core temp. I didn't have to dump a lot of ice in my kit like others in the past. 8. The legs nor arms didn’t ride up anytime during the race. 9. No chafing .... anywhere 10. Low cut neck with protected zipper very comfortable. 11. The pad did NOT feel like a diaper at all during the run. It's very obvious DeSoto listens to the athletes and are athletes themselves. Well thought out kit. I highly recommend the kit for anyone looking to do a sprint or IM distance race. It was perfect! Thanks to the DeSoto team !!!

United States

Awesome kit! High quality materials, definitely love mine

My go too kit, enough said!

Sean L.
United States

Great Suit

I didn't write a review right away after purchasing the suit because I wanted to make sure it was everything I wanted before deciding to return it or keep it. Well I'm keeping it after using it for a half marathon run, a half ironman, and a sprint. The suit really excels when wet. On a hot day in Texas, I just kept pouring water on the suit and it kept me much cooler than other suits I've used in the past. The quality is excellent and the only reason I thought about returning it is fit. I'm tall and slender, so finding a suit (made by anyone) is a bit of a problem. They are either too short or too baggy. Luckily DeSoto has some great owners that will help you with sizing. It did take a few wearings before the suit fit me well, and the material definitely relaxes after it's wet. The suit isn't going to magically stretch an inch or more, but if you just need another quarter inch to half inch, wear the suit a few times and it'll fit nicely. I'd definitely buy from this brand again.

Thane S.
United States

can't beat the chamois

I cross-shopped the Riviera with Brand R's trisuit. I genuinely preferred most aspects of the other product, but the chamois in that suit is thin to the point of useless to me. During IMMD, I found the chamois to be effective at supporting me in reasonable comfort. I did not at all find it to be intrusive during the run. For size, I ordered a medium. I'm 5'9.5" tall. I typically wear 32x30 pants and a 38 jacket. I found the fit to be pleasingly compressive in the legs but excessively so vertically. It felt like it was pressing down on my shoulders a bit too much. I like the thigh pockets for empty gel pack disposal during the race, and they hold my phablet with case during training rides. I chose the color fade graphic and got tons of compliments, which is always nice. I mean, I'm slow, so looking good is some consolation ;)

Thane S. verified customer review of RIVIERA FLISUIT™*
sean s.
United States

Best suit ever

I had an amazing customer service experience and then to back it up this is the best Tri garment I have ever purchased. The pad is a perfect thickness for a full and did not know it was even there in the run


  Height Weight Waist Chest Hips
X-Small < 5'6" in / <168 cm 135 lbs / 61 kg 22”-24” in / 56-61 cm < 37” in / < 94 cm
Small 5’6”-5’8” in / 168-173 cm 145 lbs / 66 kg 24”-27” in / 61-69 cm 37”-39” in / 94-99 cm < 34" in  / < 86 cm
Medium 5'9" in / 175-180 cm 165 lbs / 75 kg 27”-32” in / 69-81 cm 39”-42” in / 99-107 cm 34"-38" in  / 86-96 cm
Large 6'0" in / 183-188 cm 195 lbs / 88 kg 32”-35” in / 81-89 cm 42”-45” in / 107-114 cm 38"-42" in / 96-106 cm
X-Large 6'2" in / 191-196 cm 215 lbs / 98 kg 35”-41” in / 89-104 cm 45”-48” in / 114-122 cm 42"-47" in / 106-119 cm
XX-Large 6'5" in / 197 cm+ 235 lbs / 107 kg 42” in +  / 105 cm + 49” in + / 123 cm + 48" in + / 121 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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