Zerofit Ultimate Heatrub Leggings
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Choosing The Right Fit
Zerofit baselayers are designed as technical performance layers for riding, training and outdoor use. The fabrics are high-stretch and designed to sit close to the body, helping them work properly under motorcycle gear.
If you prefer a more relaxed fit, or you are between sizes, we would generally recommend choosing the larger size.
This guide brings together the main Zerofit sizing information for IceSkin baselayers, Heatrub Ultimate baselayers and Heatrub Ultimate leggings.
Choose Your Zerofit Size Guide
IceSkin Baselayers
The Zerofit IceSkin range is designed for warm-weather riding, using a lightweight, high-stretch technical fabric that moves comfortably with the body while helping manage heat and moisture under motorcycle gear.
The fit is more performance-focused and slightly closer fitting than a standard t-shirt or casual baselayer. The IceSkin range is unisex.
| Size | Chest Size | Approx Dress Size* |
|---|---|---|
| XS | 28–32" | UK 6–8 |
| S | 32–36" | UK 8–10 |
| M | 36–40" | UK 10–12 |
| L | 40–44" | UK 12–14 |
| XL | 44–48" | UK 14–16 |
| 2XL | 48–52" | UK 16–18 |
| 3XL | 52–56" | UK 18–20 |
* Dress size guidance is approximate and intended as a general reference only.
IceSkin Fit Notes
- Designed for temperatures from 20°C to 40°C
- Lightweight, high-stretch performance fit
- Designed to be worn directly against the skin for best cooling performance
- Smooth, low-friction finish helps jackets and leathers slide on more easily
- Size up if you prefer a more relaxed fit
Heatrub Ultimate Baselayers
The Zerofit Heatrub Ultimate Baselayer is designed for colder riding conditions, using high-stretch fabric and heat-retaining inner fibres to create warmth without bulky layering.
The fit is close and technical, but the fabric has plenty of stretch. If you are between sizes, or prefer more room under your riding gear, we recommend choosing the larger size.
| Size | Chest Size | Approx Dress Size* |
|---|---|---|
| XS | 28–32" | UK 6–8 |
| S | 32–36" | UK 8–10 |
| M | 36–40" | UK 10–12 |
| L | 40–44" | UK 12–14 |
| XL | 44–48" | UK 14–16 |
| 2XL | 48–52" | UK 16–18 |
| 3XL | 52–56" | UK 18–20 |
* Dress size guidance is approximate and intended as a general reference only.
Heatrub Baselayer Fit Notes
- Designed for cold-weather riding and outdoor use
- High-stretch construction adapts to a wide range of body shapes
- Designed to sit close to the body under motorcycle gear
- Slightly more snug than the Move range
- Size up if you are between sizes or prefer a more relaxed fit
Heatrub Ultimate Leggings
The Zerofit Heatrub Ultimate Leggings are designed as a warm, technical base layer for colder riding conditions. The fabric has a close, high-stretch fit that moves with you under riding trousers.
If you are between sizes, we recommend choosing the larger size for a more relaxed fit.
| Size | Waist Size |
|---|---|
| S | 26–30" |
| M | 30–34" |
| L | 34–38" |
| XL | 38–42" |
| 2XL | 42–46" |
Fit Options
Available in Men's Fit and Women's Fit options.
Heatrub Leggings Fit Notes
- Unisex fit
- High-stretch construction
- Designed to sit close to the body under riding trousers
- Size up if you are between sizes or prefer a more relaxed fit
Need Help Choosing Your Zerofit Size?
If you’re unsure about sizing, feel free to get in touch or visit us in-store. We’re happy to help recommend the right fit based on your normal riding gear, layering preferences and how you prefer your baselayers to feel under a jacket, trousers or suit.
The Zerofit Ultimate Heatrub Leggings are designed for cold-weather riding, adding an insulating layer under motorcycle trousers without restricting movement.
Made using Zerofit’s Heatrub fabric, the same material used in the Heatrub Ultimate baselayer, they are designed to retain warmth close to the body while remaining flexible and comfortable under riding gear. The double-loop construction helps trap warm air, while movement within the fabric helps generate additional warmth.
How Heatrub Works
Heatrub uses heat-retaining fibres and high-stretch construction to help maintain warmth without relying on compression or bulky layering.
Designed for temperatures from -10°C to 10°C, they provide reliable insulation in colder riding conditions without the bulk of heavier thermal layers. They are especially effective during winter riding, early starts and exposed motorway or adventure riding where wind chill becomes a factor.
The stretch construction creates a close, comfortable fit, making them easy to wear under motorcycle trousers for commuting, touring and everyday cold-weather riding.
