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Your cart is empty.Perfect for training, racing, and recreation, TYR's Diamondfit women's swimsuit is ideal for athletes who want reliable coverage during every swim. TYReco fabric is made of 80% recycled nylon (requiring less energy to produce) and 20% Lycra XTRA LIFE fiber — resisting damage from chlorine and lotions up to 10 times longer than swimsuits made with unprotected spandex. TYR's Diamondfit swimsuit design features sleek, flexible straps, a medium neckline, keyhole back, and a moderately cut leg. Ideal for both the beach and outdoor pools, the long-lasting Diamondfit Swimsuit's UPF 50+ fabric protects your skin from the sun by blocking harmful UVA/UVB rays. Tested to give you the edge in all your activities, hand wash for best results. Named for the Norse god of warriors, TYR Sport was established in 1985 and has grown to become one of the world’s most recognizable swimming and triathlon brands. Dedicated to building the industry’s most durable, uniquely designed swimsuits, TYR also offers innovative caps and goggles and cutting-edge equipment like fins, snorkels, floats, and more. TYR, Always in Front.
Care Instructions: TYR swimsuits are designed to be both durable and reliable. While chlorine is known to be extremely damaging to fabric, proper product care will help to extend the life and vibrancy of your suit. Remembering to rinse your swimsuit in cold water after every use is a great place to start. If you are a regular pool swimmer, feel free to also add a touch of Woolite to your rinse. This will help to further remove chlorine. We do not recommend the use of detergent or machine washing on any of our swim products.
Lisa
Reviewed in the United States on February 24, 2025
I wore this swimsuit twice already and figured I should write a review. I ordered size 36, I’m 5 3’ 137 lbs, bust is 34B, waist 27. It fits perfectly snug, maybe over time it will stretch a bit, but it’s comfortable to swim in. It’s also comfortable to take off when wet and I like the back coverage. Will buy again.
M.A.
Reviewed in the United States on February 17, 2025
This swimsuit fits true to size, and it feels great as soon as I put it on. I am a lap swimmer (no longer a competitive swimmer), and it is EXACTLY the swimsuit I wanted and needed!
Cassie W
Reviewed in the United States on February 13, 2025
It was Jan when I ordered and is not as if stores have this sort of thing out to try on in Jan in the midwest. Great swimsuit, does the job great, and fits well.
GB2025
Reviewed in the United States on January 7, 2025
Great quality suit, but definitely size up. If following the size chart, I am a 28. After reading other reviews to size up I purchased a 30. It fits, but is tight. I think the 32 would be better, but just hoping it stretches a bit with some wear and wash.The short: size up at least one, if not two sizes.
T
Reviewed in the United States on December 17, 2024
I really like these suits. Have purchased 3. The 2 Navy suits held together pretty well in color. Fading does come but I used them hard for several years. The real disappointment was the Royal color which faded within a few uses. Looking through the pictures that is exactly what happened to mine. It has outlines so it's embarrassing to wear. Just so tired of black.
TiaMia
Reviewed in Canada on September 30, 2023
I have purchased this style/brand before and it's great for just doing laps in the pool (I swim 5 days a week). My previous one started to discolour after about a year even though I washed it after every swim. This suit is good, but I have a long torso so I have to size up (and sometime it is 2 times up) because the length is 80% of the time much shorter than what the size chart indicates. No matter what the description says all tank suits will discolour and loose the elasticity in the materials. I find it surprising that the liner does not which I find odd. My order came as promised and not damaged in shipping. Also the price is great as I have found other retailers charge a lot more!
F H
Reviewed in Germany on October 17, 2023
Exactly what I needed. Lots of give I wasn’t expecting! Comfortable as far as suits go. I’m 5’7 curvy and 170lbs for size reference.
Mary
Reviewed in Australia on July 4, 2021
Nice stretchy light fabric - not too stiff and heavy like some of the chlorine resistant fabrics. Flattering fit.
Shelly
Reviewed in the United States on July 2, 2021
I am 5'9" and 150 lbs. I ordered a size 36. I have two swimsuits (different brands) in size 36 that fits perfectly. When I tried this suit on, it was tight, but I just decided to keep it because I feel like it's better for a suit (especially for lap swimming) to be a little tight as opposed to loose. After swimming in it once or twice, I regretted my decision not to return. I should have paid better attention to the reviews saying it ran small.However, I do think this is flattering and a very good quality suit.
Sarah Mah
Reviewed in Singapore on June 19, 2020
Excellent fit. Good qualify product. I will highly recommend TYR!!
Alex O
Reviewed in Mexico on August 14, 2019
El ajuste es perfecto, la tela doble de muy buena calidad que soporta en el area del abdomen y vientre. Me basé en la tabla de tallas y me quedó muy bien. Mido 1.60 m y peso 52 kg, compré talla 34.
Tessa
Reviewed in the United States on June 23, 2015
I bought this because of the gorgeous burgundy color. I am 5'3", 108 pounds, 32A and the size 32 fits perfectly. The suit feels great and is lined in black, front and back. I have been wearing a black Speedo lap suit in the Endurance polyester fabric. That suit has indeed stood up extremely well (the pool I swim laps in four or five times a week has a fairly low level of chlorine and I am careful to wash out the suit after every swim). But the Speedo suit is a little difficult to put on as there is not that much stretch. It feels OK especially when wet but is not as comfy as nylon. And I am noticing that the tush area is getting pretty pilled just from briefly hoisting myself out of the pool. I have not sat around in the suit at all. So while the Endurance fabric does stand up to the water like nothing I have ever seen before, the suit might still not have that much longer a life. Given this experience I decided to allow myself to have this nylon/lycra suit. The TYR suit is so much easier to get on. The styling is fine. The legs are a little bit lower cut than the Speedo. I will take good care of it, as I have done with the Speedo and just enjoy it.
Milashka
Reviewed in the United States on March 29, 2014
*** Update: 5 years later I still buy this suit when it's time to replace. Still very happy with it! ***I've been a fitness swimmer (3-5 times a week) for 20 years and gone through many swimsuits over the years, all brands. They tend to last an average of 6 months, some a little longer, some just barely. Fit is what I am most concerned about, I've been through any variation here - some are too tight, but still usable; some fit but get loose very quickly; almost all ride up a bit in the back, have too high of a leg cut, or are prone to side spills on top. I kinda know what worked for me and try to hunt down the same suits (Arena, Tyr - Maxbacks); this time I came up empty. I was never fond of the thinner straps of the Diamondback as far as looks go, and questioned their ability to hold up over time, but I see just about everyone else wearing these at my pool, and based on the good reviews this suit has been getting, I ordered one, and it is fantastic:1. It fits true to size, snug, but not to the point where it's super difficult to put on. I ordered size 36, I am 5'8", 130 lbs, 36A.2. I actually love the thinner straps - they feel really secure, and look a bit more feminine than the Maxback.3. Flattering fit. It's still a functional workout suit (not to be confused with a cute poolside outfit), but it has a nice fit (I had to return the Tyr Durafast Maxback which compressed me into a square - very unflattering)4. It is lined throughout. I rarely, if ever, had a suit that was also lined on the backside, which is usually what thins out first and the main reason I have to replace the suit. Finding it fully lined was a pleasant surprise. The liner is black for the black suit - not tan.I only had it one week, so I cannot attest to its durability, but it being Tyr, I don't expect anything less than 6 months. I will definitely replace it with the same one when the time comes. I hope they keep making it!
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