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Waterproof Breathable Ultrashell Jacket

New from CimAlp: a technological gem!

This 3-layer ULTRASHELL® jacket is 2 times lighter and 8 times more breathable than a traditional Hardshell jacket. This stretch, resistant jacket features finer pores to let air pass through more easily. Meanwhile, the ADVANCED jacket boasts an Ultrashell® membrane that is waterproof up to 20,000mm, all for a weight under 400g. !

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Size Table : ADVANCED
Choosing the right size
In order to obtain the correct size, measure around your chest at the widest part. The tape measure should pass under your arms.
This table takes into account if the item is larger / smaller sized.
Chest size (in): 34 - 36 36 - 38 38 - 40 41 - 43 43 - 45 45 - 48 49 +
Size to order: XS S M L XL XXL 3XL

£ 399.00

- 33 %

£ 269.00
Free delivery on orders over £50
Echanges & retours
Free exchanges and returns
3X sans frais CB
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Garantie 2 ans
2 years warranty


Just 390 grams!

The new, ultra-light3-layer ADVANCED jacket from CimAlp is waterproof and ultra-breathable, thanks to its ULTRASHELL® membrane: 

  • 8 times more breathable than an ordinary membrane. This is a real technological gem with, like all other CimAlp products,unbeatable value for money.

High-tech, simple look: jacket designed for mountaineering with ergonomic front zip to allow the hood to be done up to the nose without causing irritation, and laser cut outs at the phrase, enabling the wearer to breathe easily.

RECCO® system for extra safety.

The difference is in the details

The difference is in the details:

- Top-of-the-range finishes and VISLON® YKK waterproof zips: the definition of sturdiness!

- Waterproof YKK ventilation zips under the arms

- Multiple inner pockets with hole for earphones.

- Hood with visor, adjustable at 3 points (compatible with helmet).

- Pre-shaped, ergonomic cut.

- Thin, stretch and lightweight – just 390g at size L.

This jacket is so light that you can wear it anywhere, even when trail running!

ULTRASHELL® membrane

The innovative CimAlp 3-layer Rip-stop fabric weighs only 100g and features a latest-generation ULTRASHELL® membrane. 

This membrane is breaking records: it boasts breathability of 80,000MVP, and is waterproof up to 20,000mm of water, or 20,000 schmerber.

This performance is achieved through a smaller pore structure, which lets air pass through while remaining durable.


Insulation Level All Season
Fabric UltraShell® 20000 - 100g/m²
Weight 410g en taille M
Usage Winter Hiking, Snowshoe Walking, Nordic Walking, Ice Climbing, Nordic Walking, Light Hiking, Ski Touring, Mountain, Trekking
Technology Ultrashell
Stretchability Stretch
Water Resistance 20,000mm / 2 bar
Breathability High Breathability 80,000gsm
Wind Resistance Excellent. Over 100km/h
Key Features Wind resistant, Ultra light, Compactable , Waterproof seams
Brand CimAlp

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All Season
Product Reviews
  • Number of Reviews : 22
  • Average Grade : 4.7 /5
  • L. YVES
  • 5/5
Nice jacket, size OK, not tested yet.
  • L. Fran̤ois
  • 5/5
It pleases me greatly. Very comfortable to wear. I measure 1m76 and I make a 102cm in girth. I took the sizes L and fits like a glove :)
  • L. Thierry
  • 5/5
Very high quality product with quality finishes! I do not regret this purchase. C is a garment of highly technical and undeniable comfort.
  • K. Brahim
  • 5/5
I buy this jacket for my bike trips and I am surprised by it's great breathability and tightness. I sweat very little in it thanks to this membrane and the price for this quality is great thank you CIMALP.
  • D. Wilfried
  • 4/5
very good product
  • B. Fabien
  • 5/5
  • R. Alain
  • 5/5
very warm and light
  • G. Fr̩d̩ric
  • 5/5
excellent design, very light and efficient