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EQUIPE ThermoBooster P1
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Assos ThermoBooster P1 spans three seasons in one layer
The Assos EQUIPE ThermoBooster P1 uses a breathable Skuba textile that traps heat in a low-volume loft, then compacts down to the size of a rain jacket the moment the ride or the temperature heats up. A struzzoKragen collar manages the throat's microclimate without needing to unzip, so warmth stays adjustable without ever losing the aero, second-skin fit underneath.
What Our Gearhead® Experts Are Saying:
"I stripped this off halfway up a climb once the effort caught up with the morning chill, and it packed down small enough to disappear into a jersey pocket without throwing off my balance. The collar alone had already vented enough heat that I almost didn't need to take it off at all."
Details
- Thermal cycling layer for three-season riding
- Compacts down to stow in a jersey pocket mid-ride
- struzzoKragen collar vents heat without unzipping
- Twin Pocket rear storage doubles as a standalone jersey
- Raw-cut sleeve and waist layer smoothly under a shell
- Second-skin racingFit compression holds through hard efforts
- Item #AASZ0HL
- Material
- Skuba, circular knit, carbon-brushed inner face
- Fit
- form fitting
- Zip
- full-length front lip
- Season
- Spring, Fall
- Pockets
- 2, Twin Pocket rear
- Reflective
- details
- Activity
- Road cycling
- Manufacturer Warranty
- 2 year
Related Categories
Frequently Asked Questions
How should I choose a size in the ASSOS EQUIPE ThermoBooster P1?
Its racingFit is designed to sit close to the body, so use the ASSOS size chart and choose for a smooth, low-bulk fit over your base layer. It is listed as unisex and works best when it does not bunch beneath a shell.When is the ASSOS EQUIPE ThermoBooster P1 most useful on a ride?
Its light insulation and high breathability suit cool spring and fall road rides, especially when effort or temperatures may rise. It can work as an outer layer in milder conditions, while a shell adds coverage for exposed descents or wet weather.How does the ASSOS EQUIPE ThermoBooster P1 compare with a heavier thermal cycling jacket?
The ThermoBooster P1 favors low-bulk warmth and airflow over substantial insulation, making it better suited to high-output riding than deep-cold conditions. Choose a heavier thermal layer when warmth is the priority rather than breathability.How should I layer and ventilate the ASSOS EQUIPE ThermoBooster P1?
Wear it over a cycling base layer or jersey, then add a shell when conditions call for extra coverage. Its double-zip design lets you vent from the top or bottom, and the two rear mesh pockets support carrying essentials when worn as an outer layer.How should I care for the ASSOS EQUIPE ThermoBooster P1?
Wash it gently with mild detergent and similar technical clothing, with the zippers closed; skip bleach and fabric softener. Air-dry it and avoid high heat to help preserve the fabric stretch and close fit.









