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Base layers

FlowFlex Thermal set

A seamless thermal set in 94% nylon and 6% elastane at 200 g/m², published for a temperature range of −15 °C to 10 °C, stretching to 220% and drying in twenty minutes.

FlowFlex seamless thermal underwear set in black

FlowFlex Thermal set

A seamless thermal set in 94% nylon and 6% elastane at 200 g/m², published for a temperature range of −15 °C to 10 °C, stretching to 220% and drying in twenty minutes.

Composition
94% nylon / 6% elastane (maker’s bullet)
Fabric weight
200 g/m² (maker’s bullet)
Temperature range
−15 °C to 10 °C (maker’s bullet)
Stretch
Four-way, to 220% without deformation (maker’s bullet)
Drying
Stated to dry in 20 minutes (maker’s bullet)
Cut
European proportions — sleeves +2 cm, legs +1.5 cm; machine washable at 40 °C (maker’s bullet)
Amazon reference
B0FC2GSZJN (one reference across 5 Amazon marketplaces)
EAN
0810107299845
  • Publishes five separate figures where its neighbours publish adjectives — weight, temperature range, stretch, drying time and cut adjustment
  • A fabric weight AND a temperature range together, which is the pair that decides the season
  • Nothing published about abrasion behaviour — see the Alpinestars listing in this family

Best for: Winter riding where you want to know before buying which temperatures the layer was built for.

≈ €21
Check price on Amazon

Specifications

Composition
94% nylon / 6% elastane (maker’s bullet)
Fabric weight
200 g/m² (maker’s bullet)
Temperature range
−15 °C to 10 °C (maker’s bullet)
Stretch
Four-way, to 220% without deformation (maker’s bullet)
Drying
Stated to dry in 20 minutes (maker’s bullet)
Cut
European proportions — sleeves +2 cm, legs +1.5 cm; machine washable at 40 °C (maker’s bullet)
Amazon reference
B0FC2GSZJN (one reference across 5 Amazon marketplaces)
EAN
0810107299845

What the seller commits to paper

94% nylon / 6% elastane at 200 g/m². A temperature range of −15 °C to 10 °C. Four-way stretch to 220% without deformation. Drying in 20 minutes. A cut lengthened for European proportions — sleeves +2 cm, legs +1.5 cm — and machine washable at 40 °C.

Count the figures

Six. Composition, weight, temperature range, stretch, drying time, cut adjustment — every one of them a number.

The two thermal sets beside this one in the family publish “fleece-lined” and “warm”. Weight and temperature range together are how base layers are compared, and this is the only listing here that gives both.

The cut adjustment is the quiet one

+2 cm in the sleeve, +1.5 cm in the leg. A base layer that is short in the arm pulls out of a glove at the wrist and lets cold in at exactly the gap a rider cannot reach. Publishing the adjustment in centimetres is a maker that knows why the garment gets returned.

The rows this seller leaves empty

Abrasion behaviour. The Alpinestars layer in this family states its fabric does not melt under abrasion; nylon is a different fibre and this listing does not address the question either way.

Availability

Around 21 € on the German Amazon store, in the single reading behind this page.

An entry with nobody selling against it sits in the British, French, Italian and Spanish Amazon catalogues.

Nothing whatever came back from the American Amazon store, so the buy button there opens a search instead of an empty page.

What Keepa returned in the single reading behind this page. Availability and prices move without notice.

Prices quoted in this text were read on 18 September 2026. The live price is at the top of the page.

More base layers

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    Lightweight HeatGear compression leggings in 84% polyester and 16% elastane with anti-odour technology, published by their maker for training rather than for riding.

    Composition
    84% polyester / 16% elastane; mesh 92% polyester / 8% elastane (maker’s bullet)
    Fabric
    Lightweight HeatGear, stated ideal for training (maker’s bullet)
    Moisture
    Wicks sweat away from the body and dries very fast (maker’s bullet)
    Odour
    Anti-odour technology stated to prevent growth of odour-causing microbes (maker’s bullet)
    Stated use
    Training — motorcycling is not named by the maker (maker’s bullet)
    Abrasion behaviour
    Not published — see the Alpinestars listing in this family on melting under abrasion.
    Amazon reference
    B0874WHB28 (one reference across 6 Amazon marketplaces)
    EAN
    0194513897797
    • Publishes the exact composition of both the main fabric and the mesh panels
    • Anti-odour on a garment worn against the skin all day
    • The maker does not name motorcycling anywhere — it is a training garment

    Best for: Training, which is what its maker published it for. Under riding kit, read the Alpinestars listing first.

    ≈ $28 / £24 / €24
    Check price on Amazon
  • MOBIUSPHY fleece-lined thermal underwear set

    MOBIUSPHY Alkey

    A fleece-lined windproof thermal underwear set in a fabric stated to stretch four ways, published for motorcycling among winter activities, in European sizing.

    Lining
    High-quality fleece, stated windproof for cold weather (maker’s bullet)
    Stretch
    Four-way stretch fabric, stated for full freedom of movement (maker’s bullet)
    Sizing
    European standard sizing, stated not to shrink (maker’s bullet)
    Stated use
    Motorcycling, skiing, cycling, winter walking (maker’s bullet)
    Moisture
    Moisture-regulating fibre, stated to move sweat away and keep the wearer dry and warm (maker’s bullet)
    Composition
    The maker puts nothing in writing on this.
    Amazon reference
    B07WK2MC6B (one reference across 5 Amazon marketplaces)
    EAN
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    • Fleece lining published as the insulation, not implied
    • Motorcycling named first among its stated uses
    • No fibre composition published at all

    Best for: Cold-weather riding where warmth matters more than bulk.

    ≈ £15 / €20
    Check price on Amazon
  • ALPIDEX thermal underwear set in black and red

    ALPIDEX 15100

    A two-piece thermal set in 70% polyamide, 25% polyester and 5% elastane with extra-flat seams and placed ventilation panels, cut to sit unnoticed under ordinary clothes.

    Composition
    70% polyamide / 25% polyester / 5% elastane (maker’s bullet)
    Seams
    Extra-flat, for comfort and freedom of movement under jeans and a pullover (maker’s bullet)
    Ventilation
    Deliberately placed panels for air circulation and heat regulation (maker’s bullet)
    Durability
    The polyamide content is stated to stop the fabric stretching out after repeated washing (maker’s bullet)
    Set contents
    Trousers and long-sleeved top; sizes S/M, L/XL, 2XL/3XL (maker’s bullet)
    Fabric weight
    The maker puts nothing in writing on this.
    Amazon reference
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    EAN
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    • Full three-fibre composition published to the percentage
    • Explains what the polyamide is there for, rather than just listing it
    • No fabric weight and no temperature range published

    Best for: Layering under ordinary clothes and riding kit alike, where seams and bulk are the complaint.

    ≈ €14
    Check price on Amazon

The rest of this rider’s shelf

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    Output
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    Repair function
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    Display
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    Protection
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    Lithium
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    Amazon reference
    B09DTXCK9D (one reference across 6 Amazon marketplaces)
    EAN
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    • The only charger here that handles 24 V as well as 12 V
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    Best for: A garage with a car, a van and a motorcycle, where 24 V occasionally turns up.

    ≈ €28
    Check price on Amazon
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    Chemistries
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    Output
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    Low-voltage start
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    Temperature
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    Amazon reference
    DE B0828KQKBM · GB B0828KQKBM · FR B083RJZ7VK · IT B0828KQKBM · ES B08435NK3X
    EAN
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    • The only charger here that names LiFePO4 — the chemistry arriving on modern motorcycles
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    Best for: Any motorcycle, and the only obvious choice here if the battery is lithium.

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    Check price on Amazon
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    DOT grade
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    Volume
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    Standards
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    Boiling points
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    Listing bullets
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    The maker puts nothing in writing on this.
    Amazon reference
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    EAN
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    • From a brake manufacturer that publishes its own technical data
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    • No standard, no ISO class and no boiling point published anywhere in the listing

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    Check price on Amazon

All base layers