Winter LS Skin Layer P1

Assos Winter LS Skin Layer P1

The Assos Winter LS Skin Layer P1 is the thoughtfully designed base layer for frosty rides in Switzerland, optimized for cold, changeable winter weather. Assos increases coverage at the neck, reinforces insulation in exposed zones, and opens up the knit at the back for enhanced breathability. The result is a warm, dry microclimate directly on the skin, without unnecessary bulk under your winter jacket. The updated material blend also offers lasting odorControl properties thanks to carbon-infused yarns.

• Higher neck coverage and strategically densified front for enhanced wind protection, more open back panel for better moisture wicking.
• Material: 91% polypropylene, 6% elastane, 3% carbon fibers with antimicrobial odorControl.
• Second-skin fit and push-pull moisture management for consistent comfort on climbs and descents.
• Nearly seamless Circular Seamless design for minimal friction under additional layers.
• Weight approx. 155g (size M, independent measurement), available only in blackSeries.
• Three sizes (0–II) cover a broad spectrum thanks to elastic construction.
• 2-year manufacturer warranty on the product.

Technical Details and Functions

The P1 adopts the protective principle of Assos winter jackets: knitted denser at the front for additional insulation, more open at the back for noticeably better breathability under the outer layer. The carbon-reinforced yarns permanently improve antimicrobial effectiveness, reducing odor formation – ideal for intense intervals or long base training sessions. The nearly seamless Circular Seamless construction hugs wrinkle-free and reduces pressure points under bibs, jerseys, and jackets. Independent tests confirm a very comfortable feel, a weight of around 155g, and the raised collar as a noticeable benefit on cold days. Additionally, Assos has streamlined the size selection to three options (0–II) without compromising fit accuracy.

Applications and Benefits

Designed as a first layer, the Winter LS Skin Layer P1 works under any winter jacket – from quick after-work ride setups to long base training days between Lake Zurich and the highlands. The denser front knit reduces the cooling effect on descents, while the more open back quickly wicks away sweat and prevents overheating. In practical tests, the layer impressed down to near freezing point, especially when combined with wind and water-protective outer garments. The second skin ensures that the layers above move more freely and add less bulk, improving aerodynamics and comfort in the saddle. Anyone seeking a versatile, easy-care base layer for training, commuting, and winter gravel rides will find a balanced mix of warmth, breathability, and low weight here.

Fit, Care and Combination Tips

The second-skin fit sits close to the body without constricting, allowing the thermoregulating properties to take full effect. Thanks to the elastic construction, the three sizes (0–II) accommodate different body shapes, with Assos providing simple size selection via the size chart. For care, a synthetic program at 30°C is recommended, which according to long-term use maintains shape and function. Combine the P1 with a winter jacket and additional ASSOSOIRES like neck warmers or face masks as conditions require, to scale protection flexibly. The manufacturer's 2-year warranty underscores the durable aspirations of this base layer.