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Product Details
Transiro Hydra Triathlon Cycling Shoes
Transiro Hydra is a triathlon shoe designed to facilitate easier transitions, built with a breathable upper and moderately stiff nylon outsole that combines comfort and pedalling efficiency.
As transitions become increasingly important— now considered the fourth discipline in any triathlon event, be that a full Ironman race or sprint distance—we have redesigned our tri-shoe range to meet the requirements of the most demanding athletes.
Transiro Hydra is built with a single Velcro strap to allow faster, worry-free transitions, where any mistake can cost decisive time. Additionally, the enveloping strap provides the strong foot support athletes need to be efficient in every race situation.
Easy-Breathing Air Mesh
The simple closure system is coupled with an upper made of 3D air-mesh fabric for a shoe that is highly breathable to help avoid overly sweaty feet, making this an optimal solution for those who prefer to race sockless.
Comfort, Efficiency, Control
The newly redesigned R5 nylon outsole offers comfort and a moderate level of stiffness for efficient pedalling. Additionally, cleat positioning is set slightly further back compared to traditional settings to better optimize pedalling efficiency and reduce knee compression. A wide vent inlet provides cooling airflow, aiding in temperature regulation.
Pedal Compatibility
These shoes are compatible with road pedal systems utilising the 3-bolt cleat system such as Shimano SPD SL, Look Keo/Blade, Time Atac etc...
Features
- 3D air mesh: Highly breathable mesh construction
- R5 nylon outsole
- Stiffness index 6
- Compatible with 3-bolt cleats and clipless road cycling pedal systems
- Cleats not supplied
- Manufacturer’s claimed weight: 233 g
Specifications
- Shoe Size System (Footwear)
- EU
- Closure Type
- velcro
- Family
- Transiro
- Gender
- Unisex
- Intended Use (Footwear)
- Road Cycling
- Primary Material (Upper)
- Mesh
- Weight (grams)
- 233 g
- Width / Fit
- regular-standard
- Breathability Rating
- High
- Materials (Detailed)
- upper-mesh, outsole-nylon
- Outsole Type
- TPU
Size Guide
| EU | UK | USA | Foot Length (mm) |
|---|---|---|---|
| 36 | 3.25 | 4.25 | 230 |
| 36.5 | 3.75 | 4.75 | 233.5 |
| 37 | 4.25 | 5.25 | 237 |
| 37.5 | 4.5 | 5.5 | 240 |
| 38 | 5 | 6 | 243.5 |
| 38.5 | 5.25 | 6.25 | 247 |
| 39 | 5.75 | 6.75 | 250 |
| 39.5 | 6 | 7 | 253.5 |
| 40 | 6.5 | 7.5 | 257 |
| 40.5 | 7 | 8 | 260 |
| 41 | 7.25 | 8.25 | 263.5 |
| 41.5 | 7.75 | 8.75 | 267 |
| 42 | 8 | 9 | 270 |
| 42.5 | 8.5 | 9.5 | 273.5 |
| 43 | 8.75 | 9.75 | 277 |
| 43.5 | 9.25 | 10.25 | 280 |
| 44 | 9.75 | 10.75 | 283.5 |
| 44.5 | 10 | 11 | 287 |
| 45 | 10.5 | 11.5 | 290 |
| 45.5 | 10.75 | 11.75 | 293.5 |
| 46 | 11.25 | 12.5 | 300 |
| 47 | 12 | 13 | 303.5 |
| 48 | 12.75 | 13.75 | 310 |
Sizing note: Fizik shoes are built with a performance fit: true to size in length but with a narrow, low-volume toe box. Do not size up — it won't solve a width issue. If you have a wider or higher-volume foot, choose the Wide Fit version. If you're unsure whether Fizik suits your foot shape, check our size and fit guide before ordering.
Accurate sizing guidance can be gained by measuring the length of your feet from the back of the heels to the tip of the big toe. This measurement corresponds to the "Foot Length" column in our size chart.
Reviews
4.3
Value of Product
Quality of Product
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Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Fizik
Where the rider meets the bike.
Fizik was founded in Northern Italy with the conviction that the three points of contact between rider and bike — saddle, shoes, handlebar tape — deserve the same engineering focus as the bike itself. Every product is engineered around the rider's body to make the long ride feel shorter.
Fizik's saddle range is organised around the Spine Concept — Bull, Chameleon, Snake — matching saddle shape to rider flexibility. The result is a comfort claim backed by anatomy rather than marketing.
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