Model Info

TYR Women's Alliance Splice Diamondfit One Piece Swimsuit

From $52.34 - $74.99
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Black/White Black/Blue Black/Red Navy/White
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Flatter your figure as you swim in a sleek, performance-ready style. The TYR Women's Alliance Splice Diamondfit One Piece... Read More
SKU: DSPN1 Product Code: 30735

Product Details

  • Also seen in:

    Triathlon Shop
    Swim Shop

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    Flatter your figure as you swim in a sleek, performance-ready style. The TYR Women's Alliance Splice Diamondfit One Piece Swimsuit is a durable, eco-friendly suit that provides a flattering silhouette.


    • Women's one-piece swimsuit.
    • Skinny straps reduce tan lines.
    • 100% chlorine resistant for 72 hours of exposure.
    • Sun resistant and colorfast.
    • Diamondfit: For flexibility.
    • Moderate cut leg.
    • 4-way stretch technology.
    • Fully lined in black.


    • Fabric: TYReco: 80% Recycled Nylon/ 20% LYCRA® XTRA LIFE™ fiber
    • Care: Hand wash, cold. Line dry.
    • Sun Protection: UPF 50+
    • Closure: Pull-on
    • Chlorine Resistant: Yes
    • Back Style: V-back & keyhole
    • Lining: Fully lined
    • Fit: Diamondfit
    • Adjustable: No
    • Bottom Coverage: Moderate
    • Country of Origin: Imported

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  • 4.5 Review Stars (46 Reviews)

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    See all 46 customer reviews
  • 5/7/2021 I love the fit except in the bust.

    3 Review Stars By Rachel F.

    Good fitting suit except I am busty. My breasts start to fall out of the sides after a good workout. I wear a sports bra under the suit because of this. I'll go back to my tried and true suits! BTW- I am 5'2 and 155 1bs. My bra size is 36 C. I bought a size 38.

    Rachel F.

    Fit: Feels true to size

  • 5/5/2015 lower quality fabric

    2 Review Stars By Katherine

    I've ordered TYR suits in the past and have been happy with them. I swim a couple times per week and this one is starting to deteriorate already. It seems to be getting a bit baggy too.


    Fit: Feels true to size

  • 9/9/2020 2 thumbs up

    5 Review Stars By Tpd

    My daughter likes it so much


  • 3/26/2015 First TYR

    4 Review Stars By Andrea A.

    I love the blue color and can't wait to try it out in the water next weekend! This is my first TYR and I'm excited.

    Andrea A.
    Brighton, CO

    Fit: Feels true to size

  • 9/30/2019 Run small

    4 Review Stars By INSwimMom

    We bought this suit from in a 26. This is my daughter typical size in TRX. She really should have ordered a 28, it is a bit snug. Should work ok for meets hopefully.

    Evansville, In

  • 9/10/2014 Comfortable fit and true to size

    5 Review Stars By Elle F.

    This is my second Alliance Splice suit. After 3 olympic/5 sprint triathlons, and all the pool sessions between, the elasticity of the first one finally began to give (I felt it had a pretty good life). I find that the suit fits nice and snug around my front, while still allowing a good range of motion at the shoulders and hips. Plus, the suits come in nice colors whose pattern makes me feel like I have a waist! Definitely worth the purchase.

    Elle F.
    Brooklyn, NY

    Fit: Feels true to size

  • 6/10/2019 Great suit

    5 Review Stars By Dale

    Comfortable.  Minimal derriere exposure despite high leg


    Fit: Feels true to size

  • 10/2/2013 Love the suit.

    5 Review Stars By Elana K.

    Simple and flattering.

    Elana K.
    Incline, NV

    Fit: Feels true to size

  • 6/19/2018 Great swimsuit!

    5 Review Stars By Susan

    Fits true to size as other Tyr swimsuits I’ve bought.  Fits snugly for swimming laps and is comfortable.  I liked it so much that I ordered another in a different color.


    Fit: Feels true to size

  • 6/1/2015 Super Suit!

    5 Review Stars By Katie

    This suit is extremely comfortable and it is also durable. I am a lifeguard and this suit is great for spending hours at the pool

    Middletown, CT

    Fit: Feels true to size

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About This Brand


Founded in Huntington Beach, CA by swimwear designer Joseph DiLorenzo (current owner) and 1972 Olympic Bronze Medalist Steve Furniss, TYR Sport was established in 1985 to provide the competitive swim market with vibrant, performance-driven prints. Since its inception three decades ago, TYR has grown to exist as one of the world’s most recognizable swimming and triathlon brands.

With global distributors and an international following, TYR remains dedicated to building the industry’s most durable, uniquely designed swimsuits, cutting edge equipment and innovative caps and goggles. On a relentless path to push the limits of sportswear we not only reimagine technologies for enhanced competitive performance, but also embrace lifestyle markets to accommodate athletes and water enthusiasts at every level.

Named for TYR, the Norse god of warriors, our company is committed to cultivating a culture of greatness, both in and out of the water. Through vision, pursuit and American ingenuity, we have become a brand synonymous with the athlete.

Like all athletes we work with an intense spirit of competition, but unlike the others, we refuse to stop there. From the planning stages to the production floor, everything we do revolves around synthesizing creativity, experience and sheer will power. For us, engineering the fastest, most advanced performance products is more than just a goal, it’s a requirement.

At TYR, we're Always in Front.