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T1 Speedtube*

  • 26000
  • 6


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 6 Reviews
    5 ★
    4 ★
    3 ★
    2 ★
    1 ★
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    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.


    Anxiety Reliever

    Wow, what a feeling! I am a very anxious (and slow) swimmer. After numerous panic attacks in the water (both with and without wetsuits) I was ready to give up tri for good. But these pants...the ability to take a break from swimming and float easily was magical. It relieved stress and made swimming feel better.

    Michael W.
    United States

    Great purchase

    These Speedtubes are the greatest wetsuit pants I have ever used. I have used 3 other brands of Lava Pants and the Speedtubes blow them away. Going to order the T1 First Wave Concept 5 Pullover next. One great feature is the height in the back. Prevents the Plumbers Butt you get with Lava Pants.

    Vin D.
    United States

    Finally a wetsuit that fits

    Been doing tri's for over 30 years. Always had to order 2 sizes larger than the charts due to larger torso. Finally found one that is light and allows you to breathe. Great service also.

    Todd A.
    United States

    T1 Speedtube

    I love these! I followed the fit guide and it was spot on. When I first took them out of the package they looked like they would be too small. But, they did fit just fine. Used them with the Black Pearl top for my Ironman. Worked well together.

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