Spring Fall LS Skin Layer P1

Assos Spring Fall LS Skin Layer P1

The Assos Spring Fall LS Skin Layer P1 is the long-sleeved base layer for cool weather, developed for reliable thermoregulation and active moisture management from neck to wrists. The current P1 generation has been revised in terms of material and construction and is around 15% lighter than its predecessor, without compromising on protection or comfort. Assos uses a zone-based knit pattern: denser at the front for additional warmth on the exposed torso, more open at the back and under the arms for better breathability under load. Together with the refined collar area and body-hugging fit, your microclimate stays stable even when the pace picks up.

• Around 15% lighter than the previous model for more versatile layering in spring and autumn.
• Zone weaving: denser at the front for insulation, more open at the back/armpits for breathability.
• Second-skin fit with virtually seamless one-piece construction against friction and for efficient push-pull moisture management.
• Material blend with carbon fibres for permanent odorControl properties: 71% polypropylene, 22% polyamide, 4% elastane, 3% carbon.
• Increased collar coverage supports heat management in headwinds during changeable conditions.
• Available as LS (long sleeve), SS (short sleeve) and as Women's LS – three variants for different preferences and fits.

Technical Details and Features

The P1 revision uses a precise insulation gradient: A tighter knit pattern in the front area reduces cold influence, while more open zones at the back and under the arms accelerate the removal of excess heat. The seamless, one-piece construction hugs like a second skin and minimises friction points under jerseys or jackets – ideal for long training sessions and high cadences. The integrated carbon fibres support permanent odour control and noticeably improve the textile's drying properties. The push-pull moisture management keeps the skin drier and thus stabilises the personal microclimate during intervals, climbs and on cool descents. The combination of these features ensures a balanced ratio of heat retention and breathability, which is particularly sought after in Switzerland during the transition between spring and autumn.

Applications and Benefits

Worn as the first layer, the Spring Fall LS Skin Layer P1 unfolds its strengths under light spring/autumn jerseys or thin jackets and adapts dynamically to changing conditions. Thanks to the long sleeves, the entire arms benefit from thermoregulation and moisture wicking, which reduces overheating during intensive sections and cooling down during breaks. On road bike loops around Lake Zurich, gravel rides in the Mittelland or commuting routes, the fit under close-fitting tops offers noticeably more comfort. Independent tests regularly praise the Assos Skin Layer series for feel and warmth-to-weight ratio, which additionally supports its use as a reliable base in the layering principle. For cool conditions, Assos recommends combining it with Spring-Fall jerseys or jackets and, if needed, a thin rain shell as weather protection on top.