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A GORE-TEX waterproof layer that weighs next to nothing and packs away to a tiny size, perfect for trekkers and backpackers.

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Product code: 15920513 / 317995

A GORE-TEX waterproof layer that weighs next to nothing and packs away to a tiny size, perfect for trekkers and backpackers.

GORE-TEX® TechnologiesMade from a light, low volume GORE-TEX 2.5 layer fabric, the Mammut Juho Jacket will keep you totally dry if you're trekking in wet weather.

Its low weight and simple design make it perfect to wear over your other breathable layers in cold wet conditions, and it's equally useful when worn over just a baselayer if you're somewhere warm and wet.

It can be packed down to a very small size, so it's easy to pack and take anywhere in your kit - or in your pocket.
  • 2 waterproof front pockets
  • Spray-proof YKK zippers
  • Elastic drawcord hem, hook and loop cuffs
Casual / Standard
Any Hood, Fixed, Stiffened Peak, Volume Adjustable
Breathable, Waterproof, Windproof, Packable
Map Pocket
Backpacking, Approach, Everyday Use, Duke of Edinburgh's Award Expeditions, Expedition, Hiking, Touring, Mountain, Travel, Trekking, Walking
Full Zip
Excellent breathablity

Important Christmas Information: Due to the large number of orders placed at this time of year, we cannot guarantee that home delivery orders placed after 4pm on December 20th will arrive before Christmas.

However Click & Collect from your local store will still be available right up to Christmas Eve. Please check your local stores opening hours before making a trip to store.

Delivery and collection options

XS 33 - 35" 27 - 29"
S 36 - 38" 30 - 32"
M 39 - 41" 33 - 35"
L 42 - 44" 36 - 38"
XL 45 - 47" 39 - 41"
2XL 48 - 50" 42 - 44"
3XL 51 - 54" 45 - 48"
XS 84 - 89cm 69 - 74cm
S 91 - 97cm 76 - 81cm
M 99 - 104cm 84 - 89cm
L 107 - 112cm 91 - 97cm
XL 114 - 119cm 99 - 104cm
2XL 122 - 127cm 107 - 112cm
3XL 129 - 137cm 114 - 122cm

Men's Clothing size guide

Measuring tips

Take your actual body measurements as they are more accurate than measuring over your clothes or shoes.

Collar: Measure around the base of the neck where the collar sits.

Chest: Measure the chest at the fullest part, placing the tape close up under the arms.

Waist: Measure the natural waistline.

Inside Leg: Measure from the crotch to where your trouser is normally worn on the shoe.

Jacket Length: Measure from the centre back of your neck to your hemline. The length measurement will vary depending on the style.

Feet: Use a ruler or tape measure to measure your foot (from the heel to the tip of your longest toe) Be sure to measure both feet. Many people have feet of different sizes. Fit to the larger of the two.

Ratings & Reviews

Overall Rating

1.73 out of 5
11 reviews
Write a review
1.73 out of 5

Not breathable

Bought this jacket on a recommendation against my normal purchases of Berghaus. Wore it once to the shops and home during a rainy day. Was shocked to find when I got home that it was wet inside the hood, shoulder and upper arms. Probably condensation but had I been hiking with a pack this would have been as effective as a black bin liner. GO Outdoors Lincoln were great and gave me a refund so that I could buy a Berghaus. Funny enough the next day was raining and I completed the same walk, bone dry this time.

1.73 out of 5

save your money

Wore the jacket once, got wet, took it back for refund, told it had to go back to Mammut for warranty claim. After a small discussion, it was decided i could have a refund.

1.73 out of 5

Mammut Juho jacket not waterproof

I thought that, being Gortex, I had purchased a solid waterproof jacket. How wrong I was. I have used it twice in the rain and got completely soaked both times. Water just seems to soak through the material. Very poor.

1.73 out of 5

Mammut juho

Avoid at all costs , bought this with high hopes to use a ynot festival because I knew the weather looked sketchy to say the least .water came through round the neck area and cuffs just seem to draw the water up .not impressed having said that go outdoors were brilliant on changing item with no fuss.

1.73 out of 5

Not waterproof. Not breathable.

The jacket was neither waterproof nor breathable at first use. Totally disapointing. Got me into an awuful week.

1.73 out of 5

Mummut Juho mens Jacket

he jacket is waterproof but not not breathable. I got soaking wet on first use.

1.73 out of 5

Not waterproof

The jacket is not waterproof. I got soaking wet on first use.

1.73 out of 5

Jacket leaked badly

This jacket leaked badly on its first use during a resent trip to Snowdonia. my son was soaking wet by the time he got to the summit on mount Snowdon while I was fine in my Sherpa Lithang jacket. I'm going to try reproofing it with nikwash txdirect , but if it still leaks I will take it back for a refund and put that money towards another jacket.

1.73 out of 5

Mammoth juho jacket

Great jacket, lightweight comfortable.Works as it should.

1.73 out of 5

Men's Mammut Juho Jacket epic failure

Bought this last Autumn before a camping in Scotland and worn three times since, the last been when I was actually caught in a shower whilst camping in Wales last week. During the Wales trip although the one and only shower wasn't heavy the jacket failed on an epic scale with rain soaking straight through...Gutted. I thought I had bought a decent product.

Will be contacting Goretex to have the jacket either replaced, fixed or refunded.

1.73 out of 5

Mammut Juho Jacket

A fantastic quality jacket from Mammut! Beautifully made!

Haven't tested in the rain yet but being Gore-Tex I'd expect it to handle the best the British weather can throw at it.

Superb service from Go Outdoors too.

Very pleased.

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