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Base layers

Under Armour UA HG Armour Leggings

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

Under Armour HeatGear compression leggings in black

Under Armour UA HG Armour Leggings

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

Specifications

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

What the seller commits to paper

84% polyester / 16% elastane, with mesh panels at 92% polyester / 8% elastane. Lightweight HeatGear, stated ideal for training. Sweat wicked away and fast drying. Anti-odour technology against odour-causing microbes. An ergonomic cut with a wide elastic waistband and a drop-in pocket on the right.

What its maker says it is for

Training. Not riding. Motorcycling does not appear in this listing at all, and the product is in this family because the shelf holds it, not because its maker put it there.

The Alpinestars base layer in this same family publishes that its fabric does not melt under abrasion. That is a property a motorcycle equipment maker chose to publish about a garment worn under riding kit, and it is not addressed here either way.

Read the two listings together. This page is not going to tell you what this maker did not.

Where the listing is genuinely strong

Both compositions published, to the percentage, for both fabrics in the garment. Very few base layers on this shelf publish one composition, let alone two.

Availability

Between 24 € and 33 € across the German, French, Italian and Spanish Amazon stores, in the single reading behind this page.

Priced in local currency, which the euro range above deliberately leaves out, it also appears on the American and British Amazon stores.

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

  • 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
    0761426818951
    • 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
    B07V3N2JPL (one reference across 6 Amazon marketplaces)
    EAN
    4251379348309
    • 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
  • Alpinestars Ride Tech V2 base layer bottoms in black and red

    Alpinestars Ride Tech V2 Bottom Summer

    A motorcycle base layer in polypropylene with elastane, published by its maker as not melting under abrasion — the only listing in this family to address that property.

    Composition
    Polypropylene with elastane fabric (maker’s bullet)
    Abrasion behaviour
    The maker states the fabric does not melt under abrasion (maker’s bullet)
    Construction
    Double layers, stated for additional moisture handling (maker’s bullet)
    Function
    Part of a range for regulating internal temperature (maker’s bullet)
    Stated use
    Motorcycling first, then skiing, hiking and other outdoor activity (maker’s bullet)
    Fabric weight
    The maker puts nothing in writing on this.
    Amazon reference
    B08WNC73GD (one reference across 6 Amazon marketplaces)
    EAN
    8059175286704
    • The only base layer here that publishes how its fabric behaves under abrasion
    • A motorcycle equipment maker publishing a motorcycle property
    • The most expensive base layer here, by roughly three times

    Best for: Wearing under leathers or a suit, where what the layer next to your skin is made of has been thought about.

    ≈ $90 / £65 / €66
    Check price on Amazon

The rest of this rider’s shelf

  • NOCO GENIUS5 battery charger with clamps and ring terminals

    NOCO GENIUS5

    A 5 A 6 V/12 V charger, maintainer and desulphator that names lithium LiFePO4 alongside AGM, gel and EFB, charging from 1 volt and with a manual Force mode for 0 V batteries.

    Chemistries
    Lead-acid (AGM, gel, EFB) AND lithium-ion (LiFePO4) — the only listing in this family to name lithium (maker’s bullet)
    Output
    6 V and 12 V, 5 A (from the title)
    Low-voltage start
    Charges from 1 V; a Force mode addresses deeply discharged batteries at 0 V manually (maker’s bullet)
    Temperature
    Integrated thermal sensor adjusting the charge cycle to ambient temperature (maker’s bullet)
    Repair mode
    Detects sulphation and acid stratification automatically, countering both by precise pulse charging (maker’s bullet)
    Supplied and warranty
    Charger, clamps with integrated ring terminals, instructions; 3-year warranty (maker’s bullet)
    Amazon reference
    DE B0828KQKBM · GB B0828KQKBM · FR B083RJZ7VK · IT B0828KQKBM · ES B08435NK3X
    EAN
    0046221190267
    • The only charger here that names LiFePO4 — the chemistry arriving on modern motorcycles
    • Charges from 1 V, with a manual mode for a battery reading zero
    • Not found on the US market, and the ASIN differs between several markets

    Best for: Any motorcycle, and the only obvious choice here if the battery is lithium.

    ≈ €68
    Check price on Amazon
  • ATE SL DOT 4 brake fluid five-litre container

    ATE SL DOT 4, 5 L

    A five-litre DOT 4 brake fluid whose bullets consist of the product name twice, a quality claim and a claim of ergonomic design — with no standard or boiling point published.

    DOT grade
    DOT 4 (from the title)
    Volume
    5 litres — 5000 ml (from the title)
    Standards
    NOT published in the bullets — no FMVSS, no ISO 4925 class, no SAE reference.
    Boiling points
    The maker puts nothing in writing on this.
    Listing bullets
    Four: "ATE brake fluid SL 5 ltr", "ergonomic design", "high quality", "ATE brake fluid SL 5 ltr".
    Miscibility
    The maker puts nothing in writing on this.
    Amazon reference
    B003VXPY4K (one reference across 6 Amazon marketplaces)
    EAN
    4006633490030
    • From a brake manufacturer that publishes its own technical data
    • A five-litre container for a workshop or several machines
    • No standard, no ISO class and no boiling point published anywhere in the listing

    Best for: A rider who already uses this fluid and is re-ordering it by name.

    ≈ €32
    Check price on Amazon
  • Bosch DOT 4 brake fluid 500 ml bottle

    Bosch DOT 4, 500 ml

    A 500 ml DOT 4 brake fluid published to three standards with a dry boiling point of at least 230 °C and a stated two-year replacement interval.

    Dry boiling point
    ≥ 230 °C (maker’s bullet) — the only boiling point published in this family
    Standards
    FMVSS § 571.116 DOT 4, SAE J 1704, ISO 4925 Class 4 (maker’s bullet)
    Replacement interval
    Every 2 years, with the vehicle manufacturer’s own requirement taking precedence (maker’s bullet)
    Volume
    500 ml (from the title)
    ABS
    Inhibitor components stated to act as a protective lubricant against noise, wear and corrosion (maker’s bullet)
    Stated compatibility
    Suitable for vehicles manufactured before 2010 (maker’s bullet)
    Amazon reference
    B00P3XXJFC (one reference across 6 Amazon marketplaces)
    EAN
    4047025114592
    • Publishes a dry boiling point in degrees — the only fluid in this family to do so
    • Publishes a change interval AND defers to the vehicle manufacturer on it
    • The wet boiling point is not published, and that is the figure that degrades

    Best for: One brake bleed on a machine specified for DOT 4, opened and finished the same day.

    ≈ £13 / €11
    Check price on Amazon

All base layers