Product Details
Assos Spring Fall ThermoBooster P1 Jersey
Adding an extra layer of thermal warmth to your cycling kit, the Assos Spring Fall ThermoBooster P1 Jersey can be used as a lightweight outer jersey for cooler weather conditions or as an insulating mid-layer to wrap up against the harshest winter cycling conditions.
Made with Skuba, a highly elastic thermal material with a carbon-brushed inner face, this hybrid jersey/base layer gives a close and aerodynamic fit while keeping warmth in. And during full-gas efforts excellent breathability keeps you feeling dry and comfortable. Should winter temperatures rise or your ride intensity increase significantly, the ThermoBooster P1 can even be wrapped up small enough to stash away in a winter jersey pocket.
Its highly versatile nature means you’ll enjoy wearing it across the seasons – wear over a summer cycling jersey in spring or autumn or layer it beneath your winter cycling jacket for excellent thermo-regulation in the cold.
AEPD 11 racingFit
The AEPD 11 racingFit of the Booster has been refined and perfected at the World Tour. This pro-level fit gives you a second-skin, aerodynamic silhouette designed to save precious watts for the later stages of a ride or race. The 360-degree compressive fit also gives excellent stability and comfort with low-level bulk to unlock 3-season versatility.
Features
- SKUBA textile with soft, carbon-brushed inner face creates low-volume loft for heat-trapping insulation
- struzzoKragen: A collar of soft insulation that actively modulates the personal microclimate without requiring unzipping and exposing the throat to cold air
- Twin Pocket: A pair of rear pockets add storage options for standalone versatility as a thermal jersey in cool conditions
- Raw Cut: Sleeve and waist are raw cut, eliminating transitional ridges for low-volume, frictionless layering with shells, jackets, and gloves
Specifications
- Cycling Discipline
- Road
- Cycling Fit Profile
- Race
- Fabric Performance
- Breathable, Wicking
- Fit Type (General)
- Compression
- Gender
- Men's
- Jersey Type
- Thermal
- Material / Main Fabric
- Elastane
- Moisture Management
- Wicking
- Pocket Configuration
- Standard 3
- Primary Activity
- Cycling
- Sleeve Length
- Long Sleeve
- Weather Protection Level
- None
- Fit Profile
- Race
- Product code
- 1826956 / 54294542123354
Size Guide
| Size (cm) | XS | S | M | L | XL | XXL (XLG) | XXXL (TIR) |
|---|---|---|---|---|---|---|---|
| Chest (1) | 88 - 91 | 92 - 95 | 96 - 100 | 101 - 106 | 107 - 113 | 114 - 121 | 122 - 129 |
| Height (2) | 155 - 170 | 165 - 178 | 173 - 188 | 178 - 190 | 181 - 195 | 185+ | 185+ |
| Waist (3) | 70 - 74 | 75 - 80 | 81 - 86 | 87 - 92 | 93 - 99 | 100 - 106 | 107+ |

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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.
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About Assos
Swiss precision. Half a century of obsession.
Assos of Switzerland was founded in 1976 by Toni Maier-Moussa with a single ambition: reinvent cycling apparel from the inside out. The Lycra cycling short, modern bibs, the chamois as we know it — all began here. Half a century later, the obsession with precision and ride feel hasn't moved an inch.
Assos still designs and engineers every piece in Switzerland. The brand operates its own laboratory, its own development pool of test riders, and its own assembly line for the most demanding garments in the range.