Inov8 Ultrashell Pro FZ

Pertex Shield 3 Layer / 20,000mm HH, 40,000 MVTR
Weighs 102g (Medium size)
Code: AW19103
  • Now £219.99
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The Ultrashell Pro FZ is an amazingly lightweight, minimalist waterproof jacket with exceptional performance. High levels of breathability coupled with solid waterproofing and a streamlined fit make this an ideal race shell.

Inov8 says:

The ultimate three-layer waterproof running jacket that weighs an insane 106 grams but still incredibly retains superior breathability, protectiveness and packability. The ULTRASHELL PRO FZ is packed with industry-leading technical features that will keep runners dry and protected in even the wildest of weather conditions. It’s our most breathable running jacket ever (40,000 B-1) and, unlike many other three-layer waterproofs on the market, can be packed away small into its own integrated pocket.

Inov8's Ultrashell Pro FZ is a brilliantly designed race ready waterproof jacket. It is amazingly thin, almost see through, for a 3 layer jacket and the weight is seriously impressive. However, the most impressive aspect of the Utrashell Pro is the level of waterproofing and breathability. As with any waterproof, when you are running hard up steep slopes you will sweat and the jacket may not seem as breathable as you want but overall this does breathe really well.

At this weight you expect a fairly minimalist approach in terms of the features you'll get from a jacket but Inov8 have designed this cleverly. Elasticated sections on the hem, cuffs and hood create a great fit with over- or under-doing it. The pocket on the arm is a decent size and doubles as the stuff sack which is great when the weather improves. With a slim, athletic fit it feels great on and doesn't catch the wind too much like many other shell jackets when running.

- Reviewed by Ultralight Outdoor Gear

Help and advice:
Advice on choosing a waterproof shell at Ultralight Outdoor Gear
  Hydrostatic Head explained at Ultralight Outdoor Gear
  MVTR & Breathability explained at Ultralight Outdoor Gear
  • For trail running and mountain running.
  • Stay dry and protected: New Pertex Shield™ is a 3-layer waterproof fabric with a high protection rating of 20,000 HH. Jacket also has taped seams throughout.
  • Insanely lightweight for 3-layer jacket: Weighs only 106 grams.
  • Incredibly breathable: Boasts a breathability level of 40,000 B-1 (double the level of any other inov-8 jacket). This allows heat to move super-fast through the shell and helps runners perfectly regulate their body temperature.
  • Storage: A small arm pocket positioned out of the way from pack straps is ideal for stashing small items.
  • Run light and fast: Jacket packs neatly away into the integrated pocket.
  • Head protection: Pre-shaped hood with flexible peak protects the head and ears, while remaining securely positioned no matter how strong the wind.
  • Enjoy versatility: Full length front zip can be adjusted to increase ventilation or protection, depending on what is needed most.
  • Small weighs: 100g
  • Medium weighs: 102g
  • Large weighs: 106g
  • XLarge weighs: 112g
  • Back length: 80cm (size M)


  • Pertex Shield™, 3 layer waterproof fabric with 20,000 HH and 40,000 B-1 breathability, plus taped seams.
  • 100% Polyamide with PU membrane
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