Men's Base Layers

UYN men’s base layers combine functional architectures and high-performance yarns to manage heat, moisture and freedom of movement with technical precision. Designed as a first layer for dynamic activities and varied weather conditions, they offer stable thermoregulation, effective breathability and consistent comfort even during thermal transitions. A premium technical underwear range designed to support the body continuously, when performance and control must remain impeccable.
  • Position+ 3 Inch Boxers Position+ 3 Inch Boxers

    Position+ 3 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 49.00
    Regular price CHF 0.00 Sale price CHF 49.00
    Size: from S/M to XXL
  • Fusyon Biotech Zip Up Thermal Jersey Fusyon Biotech Zip Up Thermal Jersey

    Fusyon Biotech Zip Up Thermal Jersey

    man - Biotech Underwear Tops

    Regular price CHF 165.00
    Regular price CHF 0.00 Sale price CHF 165.00
    Size: from S/M to XXL
  • Position+ Biotech 9 Inch Boxers Position+ Biotech 9 Inch Boxers

    Position+ Biotech 9 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 59.00
    Regular price CHF 0.00 Sale price CHF 59.00
    Size: from S/M to XXL
  • Position+ 3 Inch Boxers Position+ 3 Inch Boxers

    Position+ 3 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 49.00
    Regular price CHF 0.00 Sale price CHF 49.00
    Size: from S/M to XXL
  • Fusyon Biotech Turtleneck Thermal Jersey Fusyon Biotech Turtleneck Thermal Jersey

    Fusyon Biotech Turtleneck Thermal Jersey

    man - Biotech Underwear Tops

    Regular price CHF 155.00
    Regular price CHF 0.00 Sale price CHF 155.00
    Size: from S/M to XXL
  • Energyon Base Layer Top Energyon Base Layer Top

    Energyon Base Layer Top

    man - Lightweight Undershirts

    Regular price CHF 89.00
    Regular price CHF 0.00 Sale price CHF 89.00
    Size: from S/M to XXL
  • Motyon 2.0 Boxers with seat pad Motyon 2.0 Boxers with seat pad

    Motyon 2.0 Boxers with seat pad

    man - Lightweight Bottoms

    Regular price CHF 89.00
    Regular price CHF 0.00 Sale price CHF 89.00
    Size: from S/M to XXL
  • Energyon Sleeveless Base Layer Energyon Sleeveless Base Layer

    Energyon Sleeveless Base Layer

    man - Lightweight Undershirts

    Regular price CHF 64.00
    Regular price CHF 0.00 Sale price CHF 64.00
    Size: from S/M to XXL
  • Energyon Short-Sleeved Base Layer Top Energyon Short-Sleeved Base Layer Top

    Energyon Short-Sleeved Base Layer Top

    man - Lightweight Undershirts

    Regular price CHF 79.00
    Regular price CHF 0.00 Sale price CHF 79.00
    Size: from S/M to XXL
  • Position+ Briefs Position+ Briefs

    Position+ Briefs

    man - Lightweight Bottoms

    Regular price CHF 49.00
    Regular price CHF 0.00 Sale price CHF 49.00
    Size: from S/M to XXL
  • Position+ 9 Inch Boxers Position+ 9 Inch Boxers

    Position+ 9 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 59.00
    Regular price CHF 0.00 Sale price CHF 59.00
    Size: from S/M to XXL
  • Position+ 6 Inch Boxers Position+ 6 Inch Boxers

    Position+ 6 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 59.00
    Regular price CHF 0.00 Sale price CHF 59.00
    Size: from S/M to XXL
  • Position+ 6 Inch Boxers Position+ 6 Inch Boxers

    Position+ 6 Inch Boxers

    man - Lightweight Bottoms

    Regular price CHF 59.00
    Regular price CHF 0.00 Sale price CHF 59.00
    Size: from S/M to XXL
  • Natyon 3.0 Germany Thermal Jersey Natyon 3.0 Germany Thermal Jersey
    UNISEX

    Natyon 3.0 Germany Thermal Jersey

    unisex - Winter Thermal Tops

    Regular price CHF 145.00
    Regular price CHF 0.00 Sale price CHF 145.00
    Size: from XS to XXL
  • Energyon Short-Sleeved Base Layer Top Energyon Short-Sleeved Base Layer Top

    Energyon Short-Sleeved Base Layer Top

    man - Lightweight Undershirts

    Regular price CHF 79.00
    Regular price CHF 0.00 Sale price CHF 79.00
    Size: from S/M to XXL
  • Natyon 3.0 Poland Thermal Jersey Natyon 3.0 Poland Thermal Jersey
    UNISEX

    Natyon 3.0 Poland Thermal Jersey

    unisex - Winter Thermal Tops

    Regular price CHF 145.00
    Regular price CHF 0.00 Sale price CHF 145.00
    Size: from XS to XXL
  • Natyon 3.0 Russia Thermal Jersey Natyon 3.0 Russia Thermal Jersey
    UNISEX

    Natyon 3.0 Russia Thermal Jersey

    unisex - Winter Thermal Tops

    Regular price CHF 145.00
    Regular price CHF 0.00 Sale price CHF 145.00
    Size: from XS to XXL
  • Natyon 3.0 Norway 3/4 Thermal Pants Natyon 3.0 Norway 3/4 Thermal Pants
    UNISEX

    Natyon 3.0 Norway 3/4 Thermal Pants

    man - Winter Thermal Bottoms

    Regular price CHF 125.00
    Regular price CHF 0.00 Sale price CHF 125.00
    Size: from XS to XXL
  • Natyon 3.0 Poland 3/4 Thermal Pants Natyon 3.0 Poland 3/4 Thermal Pants
    UNISEX

    Natyon 3.0 Poland 3/4 Thermal Pants

    man - Winter Thermal Bottoms

    Regular price CHF 125.00
    Regular price CHF 0.00 Sale price CHF 125.00
    Size: from XS to XXL
  • Natyon 3.0 Czech Republic 3/4 Thermal Pants Natyon 3.0 Czech Republic 3/4 Thermal Pants
    UNISEX
    Regular price CHF 125.00
    Regular price CHF 0.00 Sale price CHF 125.00
    Size: from XS to XXL
  • Natyon 3.0 Czech Republic Thermal Jersey Natyon 3.0 Czech Republic Thermal Jersey
    UNISEX

    Natyon 3.0 Czech Republic Thermal Jersey

    unisex - Winter Thermal Tops

    Regular price CHF 145.00
    Regular price CHF 0.00 Sale price CHF 145.00
    Size: from XS to XXL
  • Natyon 3.0 Russia 3/4 Thermal Pants Natyon 3.0 Russia 3/4 Thermal Pants
    UNISEX

    Natyon 3.0 Russia 3/4 Thermal Pants

    unisex - Winter Thermal Bottoms

    Regular price CHF 125.00
    Regular price CHF 0.00 Sale price CHF 125.00
    Size: from XS to XXL
  • Natyon 3.0 Spain 3/4 Thermal Pants Natyon 3.0 Spain 3/4 Thermal Pants
    UNISEX

    Natyon 3.0 Spain 3/4 Thermal Pants

    unisex - Winter Thermal Bottoms

    Regular price CHF 125.00
    Regular price CHF 0.00 Sale price CHF 125.00
    Size: from XS to XXL
  • Natyon 3.0 Spain Thermal Jersey Natyon 3.0 Spain Thermal Jersey
    UNISEX

    Natyon 3.0 Spain Thermal Jersey

    unisex - Winter Thermal Tops

    Regular price CHF 145.00
    Regular price CHF 0.00 Sale price CHF 145.00
    Size: from XS to XXL
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