ØHeat is Spark's highly perforated fabric designed for extreme heat. Its micro-perforations create air channels between your skin and your helmet or jacket: air flows, heat disperses and the perceived temperature drops. It is the fabric of the Fresh+ line.
How it works
The fabric is crossed by thousands of micro-holes that create continuous ventilation. The heat your body produces does not stay trapped under the helmet or suit, and the fabric holds no moisture, so your skin stays dry.
Why it matters on the bike
- A cool head even in July, with the helmet closed.
- Steady temperature, even when you are stuck in traffic.
- Better focus: less heat build-up, a clearer head in the saddle.
- Always dry: forehead and back do not stay wet.
Spark garments in ØHeat (Fresh+ line)
- Fresh+ long-sleeve shirt
- Fresh+ short-sleeve shirt
- Fresh+ sleeveless top
- Fresh+ base layer pants
- Fresh+ undersuit
- Fresh+ balaclava
The Fresh+ shirt and pants are also available in the Fresh+ Perforated kit, for less than the single items.
Frequently asked questions about ØHeat
Is ØHeat suitable for winter?
No: ØHeat is designed for the heat. For winter, choose Dryarn® Medium or Heavy, merino wool or ØWind windproof garments.
Can it be worn on its own, without a jacket?
Yes: Fresh+ shirts and the sleeveless top can also be worn as sportswear on hot days. On the bike they go under your jacket or suit, as a base layer.
Which Spark garments use ØHeat?
The Fresh+ line: long-sleeve shirt, short-sleeve shirt, sleeveless top, base layer pants, undersuit and balaclava.