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.

Tops

Bottoms

  • Fusyon Biotech 3/4 Thermal Pants Fusyon Biotech 3/4 Thermal Pants

    Fusyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £98.99
    £0.00 £98.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech 3/4 Thermal Pants Energyon Biotech 3/4 Thermal Pants

    Energyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £72.99
    £0.00 £72.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech 3/4 Thermal Pants Energyon Biotech 3/4 Thermal Pants

    Energyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £72.99
    £0.00 £72.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Evolutyon Biotech 3/4 Thermal Pants Evolutyon Biotech 3/4 Thermal Pants

    Evolutyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £81.50
    £0.00 £81.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech Thermal Pants Energyon Biotech Thermal Pants

    Energyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £76.99
    £0.00 £76.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech Thermal Pants Energyon Biotech Thermal Pants

    Energyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £76.99
    £0.00 £76.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech Thermal Jersey Energyon Biotech Thermal Jersey

    Energyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £85.99
    £0.00 £85.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Energyon Biotech Thermal Jersey Energyon Biotech Thermal Jersey

    Energyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £85.99
    £0.00 £85.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Fusyon Biotech Thermal Pants Fusyon Biotech Thermal Pants

    Fusyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Fusyon Biotech Thermal Pants Fusyon Biotech Thermal Pants

    Fusyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Fusyon Biotech Thermal Jersey Fusyon Biotech Thermal Jersey

    Fusyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £120.50
    £0.00 £120.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Evolutyon Biotech Thermal Pants Evolutyon Biotech Thermal Pants

    Evolutyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £85.99
    £0.00 £85.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Motyon Biotech Boxers Motyon Biotech Boxers

    Motyon Biotech Boxers

    man - Lightweight Bottoms

    £42.50
    £0.00 £42.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Motyon Biotech Boxers Motyon Biotech Boxers

    Motyon Biotech Boxers

    man - Lightweight Bottoms

    £42.50
    £0.00 £42.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Motyon Biotech Briefs Motyon Biotech Briefs

    Motyon Biotech Briefs

    man - Lightweight Bottoms

    £38.50
    £0.00 £38.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • FIS 4-Star Cut-Resistant Pants FIS 4-Star Cut-Resistant Pants

    FIS 4-Star Cut-Resistant Pants

    unisex - Mid-Season Thermal Bottoms

    £302.99
    £0.00 £302.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from 2XS to XL
  • Fusyon Biotech Thermal Pants Fusyon Biotech Thermal Pants

    Fusyon Biotech Thermal Pants

    man - Biotech Underwear Bottoms

    £102.99
    £0.00 £102.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Fusyon Biotech 3/4 Thermal Pants Fusyon Biotech 3/4 Thermal Pants

    Fusyon Biotech 3/4 Thermal Pants

    man - Biotech Underwear Bottoms

    £98.99
    £0.00 £98.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Elevatyon Biomorph Thermal Pants Elevatyon Biomorph Thermal Pants

    Elevatyon Biomorph Thermal Pants

    man - Biotech Underwear Bottoms

    £111.99
    £0.00 £111.99 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Fusyon Biotech Thermal Jersey Fusyon Biotech Thermal Jersey

    Fusyon Biotech Thermal Jersey

    man - Biotech Underwear Tops

    £120.50
    £0.00 £120.50 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Good Day Evolutyon Biotech Thermal Jersey Good Day Evolutyon Biotech Thermal Jersey

    Good Day Evolutyon Biotech Thermal Jersey

    unisex - Biotech Underwear Tops

    £119.00
    £0.00 £119.00 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from XS to L/XL
  • Ambityon Defender Thermal Jersey Ambityon Defender Thermal Jersey

    Ambityon Defender Thermal Jersey

    man - Winter Thermal Tops

    £129.00
    £0.00 £129.00 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Evolutyon Xtreme Thermal Pants Evolutyon Xtreme Thermal Pants

    Evolutyon Xtreme Thermal Pants

    man - Winter Thermal Bottoms

    £70.00
    £0.00 £70.00 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
  • Motyon Xtreme Boxers Motyon Xtreme Boxers

    Motyon Xtreme Boxers

    man - Lightweight Bottoms

    £33.00
    £0.00 £33.00 (Liquid error (snippets/price line 115): Computation results in '-Infinity'% OFF)
    Size: from S/M to XXL
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