When drawing up your list of clothing to pack for the UTMB®, waterproof garments are the top priority: they must meet the race regulations and your protection needs.
What does the race regulations say?
The UTMB® regulations require every runner to carry a hooded jacket made with a waterproof and breathable membrane, capable of withstanding bad weather in the mountains. A minimum of 20,000 Schmerber is required for waterproofing. The hood must be integrated or attached to the jacket using a system originally designed by the manufacturer, and the seams must be taped. For the lower body, the regulations require long-leg running trousers or tights, paired with waterproof overtrousers, or alternatively a fully waterproof pair of long-leg trousers. These items may be checked at race bib collection: without the correct gear, you may be refused entry to the start.
Which jacket should you choose?
At Cimalp, the Storm Pro meets these requirements thanks to its 3-layer Ultrashell® membrane: waterproofing of 20,000 Schmerber, breathability of 80,000 g/m²/24h, resistance to strong winds of 60–90 km/h, all backed by a lifetime repair guarantee. It is available in a men's version (Storm Pro 4H, 290 g in size M) and a women's version (Storm Pro F, 260 g in size S).
Choose a fitted cut, but not too tight, to maintain freedom of movement, particularly around the arms.
Which trousers for the UTMB®?
For the lower body, the Storm Pro Pant overtrousers share the same performance as the jacket: 20,000 Schmerber waterproofing, 80,000 g/m²/24h breathability, wind resistance of 60–90 km/h and a lifetime repair guarantee, weighing 300 g in size M. They can be worn alone or over thermal tights in cold conditions. Currently available in a men's cut.
Frequently asked questions
What is the minimum waterproofing rating required for the UTMB®?
The regulations require a minimum of 20,000 Schmerber for the jacket as well as the waterproof trousers or overtrousers.
Are overtrousers compulsory even when no rain is forecast?
Yes. They are part of the mandatory kit checked at race bib collection, regardless of the forecast conditions, which can change rapidly in the mountains.
