Basement - Mountain Hardwear ThunderShadow Jacket

VaporDry / 2.5 Layer Shell / 16,0000 HH, 26,000 MVTR
Weighs 306g (Medium size)
Code: SS17506
  • Now £79.99
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Mountain Hardwear's ThunderShadow jacket is a feature-rich jacket made from their own VaporDry fabric, the hood is excellent, with four external pockets and pit zips it is surprisingly lightweight.

Mountain Hardwear says: The ThunderShadow™ Jacket redefines what a rain shell can be. Mechanical stretch combined with VaporDry™ means superior comfort, excellent mobility, and waterproof-breathable performance. The unique backer quality makes it uncommonly comfortable among rain shells. The ThunderShadow™ Jacket handles wet-weather outdoor pursuits with ease.

Mountain Hardwear's ThunderShadow Jacket is made from their own 2.5 layer waterproof and breathable VaporDry fabric which has a mid range Hydrostatic Head and good Breathability performance of 26,000 MVTR. The face fabric is 40Denier which also puts it in the mid-range category for durability.

There are a lot of features on this jacket - for example there are four pockets on the front - two zippered hand pockets are protected by waterproof flaps and are quite large, however we found the actual opening of the pocket to be quite small - a bit at odds with the size of the pockets. These two pockets would be unusable if wearing a rucksack (with hipbelt) or a climbing harness - which is why there are two smaller pockets set high on the chest - both protected with water resistant YKK zips.

The ThunderShadow jacket also has pit zips, pit zips allow you to vent the jacket under the arms and providing the rain isn't horizontal you still manage to stay dry inside - some people like these others don't but we think they are a useful feature - especially if you expect to wear your shell jacket all day, in which case its essential to minimise condensation.

The ThunderShadow has an excellent technical hood that can be cinched around your head, the peak has a slight stiffening at the front which will help keep water off your face.

- 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
Read reviews here:

  • VaporDry™ offers unmatched interior comfort and exceptional waterproof-breathable performance
  • 40D mechanical-stretch ripstop fabric is light, packable, and durable
  • Covered, zippered handwarmer pockets plus two harness and pack compatible water-resistant PU zippered chest pockets
  • Pit zips expel heat where and when you need it
  • Fully-featured adjustable hood
  • Stows in pocket for efficient packing
  • US style Zipper with slider on the opposite side to UK Zipper
  • Small weighs: 294g
  • Medium weighs: 306g
  • Large weighs: 316g
  • XLarge weighs: 338g
  • Fit: Standard
  • Center Back Length: 29 in / 74 cm


  • Fabric Body: VaporDry™ 40D 2.5L Stretch Ripstop (100% Tactel Nylon)
Showing our 1 review for Basement - Mountain Hardwear ThunderShadow Jacket. Write a review ›
Review Summary - 4 out of 5 based on 1 rating.
April 27, 2018 | Ville
Great for the price

I have had it for about a month now and only used it on one rainy day on a day hike. But the jacket is very light and stuffs down small. This is the type of jacket I will gladly have in my rucksack just in case. Chest pockets are good when you are using a backpack with waist-belt, pockets are also very roomy. The lower hand pocket zips are a bit hard to use (the jackets material tends to jam the zippers). The main zipper has the same problem, but it will go better when you pull the hem down hard enough and straighten the zipper. My chest is 41 inches and I chose the L size and it fits me great. Sleeves are perfect for me but I think M size sleeves could have been too short for me. I can fit a light puffy layer under when it gets colder. The jacket repels water really well (ok, I've only had it on once in moderate rain). Pit zips are excellent when the rain stops. I did not need to take it off when rain stopped, I only opened the main zip more and the both pit zips. Breathability is ok, it was +7 celsius and I had a light merino wool long sleeved shirt under the jacket on my day hike with a rucksack. I could walk with the jacket on and only got a little sweaty, like I always do, no matter what I wear. I found a little condensation inside the jacket when I ended my hike but my shirt felt completely dry. Hood adjustments are great. I can get it to fit snugly around my head and it still fits well around a cycling helmet. For this price it's an excellent jacket and I will certainly recommend it. I do not have experience with 2.5 layer shells so I can't say much about the durability over years for comparison.

Ultralight Outdoor Gear Limited