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T1 Speedtube*

  • 26000
  • 10 Reviews


The Speedtube™ was invented by Emilio De Soto in 2004. While he loved the benefits of swimming faster in a full wetsuit, he felt too warm and claustrophobic. After careful research and testing on how to achieve wetsuit buoyancy without losing speed, the Speedtube was born. The Speedtube floats the hips without sacrificing torso rotation and the natural stroke motion, resulting in better swimming technique. Perfect for racing, training or a replacement for your swim buoy. 

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

The Speedtube and all individual T1 Wetsuit pieces are completely legal under the rules set by ITU, WTC, USAT and all other governing bodies.  It can only be worn in races that permit wetsuits.

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:

  • Less-toxic bonding agent for people with skin sensitivities

    Favorite Features Remain:

    • 5-panel contour design for an exceptional fit
    • Seams are glued and blind-stitched, making them more durable than the rubber itself
    • 5mm GreenGoma™ #8 Rubber with Super Composite Skin for maximum buoyancy without compromising speed
    • Shin cut high for easy fitting and removal
    • Heavy duty drawstring waist allows adjustability
    • Lined with 4-Way stretch Nylon Lycra® for comfort and to minimize chafing
    • Can be worn alone or with any First Wave or Black Pearl Pullovers and Vests
    • Sleek graphics, no gimmicks
    • Sold as separates for a truly 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

    Made for swimmers and triathletes who:

    • have a weak kick and want maximum hip flotation
    • overheat easily in other wetsuits
    PLEASE BE AWARE:  we created this bottom to avoid overheating in races where the water is warmer than 68 degrees. This is due to the water entering between the top and the bottom at the waist.  It does not cause any drag (if the drawcord is tightened) so you do not swim any slower.  So if you are looking for maximum warmth we recommend the Bibjohn.  If you are comfortable in cooler waters the Speedtube is amazing.

    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 Based on 10 Reviews
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    Filter Reviews:
    James C.
    United States United States


    Did Feb 82 Ironman. Have been using the speedtube for 13 years. Love it. Makes swimming easier and more fun.

    Marti G.
    United States United States

    T1 Speedtube

    These are the absolute best! Just used them at IRONMAN Wisconsin on a really ruff swim, 69 degrees and super choppy water. They were warm and the perfect fit and feel in the water. Made for a great swim!

    United States United States

    Best of the best for spring and summer

    I bought the speed tube size same as my Bibjohn and was to tight. So went one size up and it has been perfect. Great service and advice directly from Emilio highly appreciated. Its so easy to put on and take off. It has exceeded my greatest expectations, swimming a pleasure!

    United States United States

    Love the speed tube!

    The team at DeSoto did a great job working on fit and information of what to expect upon receiving and first, second and third use. Great product and team.

    A De Soto Sport Customer
    Thomas A.
    United States United States

    New to triathlons

    Love the two piece over the traditional. Much better fit, and taking it off in transition is so fast.

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