man | Base layers

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.
Ski base layers
Running base layers
Cycling base layers
Hiking base layers
Multisport base layers
  • Evolutyon+ Thermal Jersey Evolutyon+ Thermal Jersey

    Evolutyon+ Thermal Jersey

    man - Biotech Underwear Tops

    £76.99
    £0.00 £76.99
    Size: from S/M to XXL
  • Evolutyon+ Thermal Pants Evolutyon+ Thermal Pants

    Evolutyon+ Thermal Pants

    man - Mid-Season Thermal Bottoms

    £68.50
    £0.00 £68.50
    Size: from S/M to XXL
  • Evolutyon+ 3/4 Thermal Pants Evolutyon+ 3/4 Thermal Pants

    Evolutyon+ 3/4 Thermal Pants

    man - Mid-Season Thermal Bottoms

    £59.99
    £0.00 £59.99
    Size: from S/M to XXL
  • Natyon Biomorph 3/4 Thermal Pants Natyon Biomorph 3/4 Thermal Pants
    UNISEX

    Natyon Biomorph 3/4 Thermal Pants

    unisex - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99
    Size: from XS to XXL
  • Natyon Biomorph Turtleneck Thermal Jersey Natyon Biomorph Turtleneck Thermal Jersey
    UNISEX

    Natyon Biomorph Turtleneck Thermal Jersey

    unisex - Biotech Underwear Tops

    £120.50
    £0.00 £120.50
    Size: from XS to XXL
  • Natyon Biomorph 3/4 Thermal Pants Natyon Biomorph 3/4 Thermal Pants
    UNISEX

    Natyon Biomorph 3/4 Thermal Pants

    unisex - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99
    Size: from XS to XXL
  • Energyon Biotech Thermal Jersey Energyon Biotech Thermal Jersey
    New in

    Energyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £85.99
    £0.00 £85.99
    Size: from S/M to XXL
  • Energyon Biotech Thermal Pants Energyon Biotech Thermal Pants
    New in

    Energyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £76.99
    £0.00 £76.99
    Size: from S/M to XXL
  • Energyon Biotech 3/4 Thermal Pants Energyon Biotech 3/4 Thermal Pants
    New in

    Energyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £72.99
    £0.00 £72.99
    Size: from S/M to XXL
  • Energyon Biotech T-shirt Energyon Biotech T-shirt
    New in

    Energyon Biotech T-shirt

    man - Lightweight Undershirts

    £68.50
    £0.00 £68.50
    Size: from S/M to XXL
  • Fusyon Biotech Turtleneck Thermal Jersey Fusyon Biotech Turtleneck Thermal Jersey
    New in

    Fusyon Biotech Turtleneck Thermal Jersey

    man - Biotech Underwear Tops

    £128.99
    £0.00 £128.99
    Size: from S/M to XXL
  • Fusyon Biotech Zip Up Thermal Jersey Fusyon Biotech Zip Up Thermal Jersey
    New in

    Fusyon Biotech Zip Up Thermal Jersey

    man - Biotech Underwear Tops

    £137.99
    £0.00 £137.99
    Size: from S/M to XXL
  • Fusyon Biotech T-shirt Fusyon Biotech T-shirt
    New in

    Fusyon Biotech T-shirt

    man - Lightweight Undershirts

    £102.99
    £0.00 £102.99
    Size: from S/M to XXL
  • Fusyon Biotech Thermal Pants Fusyon Biotech Thermal Pants
    New in

    Fusyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99
    Size: from S/M to XXL
  • Fusyon Biotech 3/4 Thermal Pants Fusyon Biotech 3/4 Thermal Pants
    New in

    Fusyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £98.99
    £0.00 £98.99
    Size: from S/M to XXL
  • Evolutyon Biotech T-shirt Evolutyon Biotech T-shirt
    New in

    Evolutyon Biotech T-shirt

    man - Lightweight Undershirts

    £109.00
    £0.00 £109.00
    Size: from S/M to XXL
  • Evolutyon Biotech Zip Up Thermal Jersey Evolutyon Biotech Zip Up Thermal Jersey
    New in

    Evolutyon Biotech Zip Up Thermal Jersey

    man - Biotech Underwear Tops

    £128.99
    £0.00 £128.99
    Size: from S/M to XXL
  • Evolutyon Biotech 3/4 Thermal Pants Evolutyon Biotech 3/4 Thermal Pants
    New in

    Evolutyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £81.50
    £0.00 £81.50
    Size: from S/M to XXL
  • Evolutyon Biotech Turtleneck Thermal Jersey Evolutyon Biotech Turtleneck Thermal Jersey
    New in

    Evolutyon Biotech Turtleneck Thermal Jersey

    man - Biotech Underwear Tops

    £120.50
    £0.00 £120.50
    Size: from S/M to XXL
  • Evolutyon Biotech Thermal Jersey Evolutyon Biotech Thermal Jersey
    New in

    Evolutyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £102.99
    £0.00 £102.99
    Size: from S/M to XXL
  • Evolutyon Biotech Thermal Pants Evolutyon Biotech Thermal Pants
    New in

    Evolutyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £85.99
    £0.00 £85.99
    Size: from S/M to XXL
  • Natyon Biomorph Turtleneck Thermal Jersey Natyon Biomorph Turtleneck Thermal Jersey
    UNISEX

    Natyon Biomorph Turtleneck Thermal Jersey

    unisex - Biotech Underwear Tops

    £120.50
    £0.00 £120.50
    Size: from XS to XXL
  • Natyon Biomorph Turtleneck Thermal Jersey Natyon Biomorph Turtleneck Thermal Jersey
    UNISEX

    Natyon Biomorph Turtleneck Thermal Jersey

    unisex - Biotech Underwear Tops

    £120.50
    £0.00 £120.50
    Size: from XS to XXL
  • Natyon Biomorph 3/4 Thermal Pants Natyon Biomorph 3/4 Thermal Pants
    UNISEX

    Natyon Biomorph 3/4 Thermal Pants

    unisex - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99
    Size: from XS to XXL
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