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Woolpower Ullfrotte Original Long Johns with Fly - 400g - Green

Woolpower Ullfrotte Original

Woolpower Ullfrotte Original Long Johns with Fly - 400g - Green


Weight: 460 g         8 reviews
The Woolpower Ullfrotte Original Long Johns with Fly - 400g comes from a collection of garments that provide the best results when worn next to the skin. In very cold conditions it can be worn over the top of the Woolpower - 200g range. These 400g Leggings are the perfect partner to the Woolpower - 400g Sweater.

Each garment features a terry-knit soft inner in fine merino wool, reinforced with polyamide for better wear-resistance, making it comfortable yet durable. Each garment part is knitted conically to reduce the need for seams, providing a great, comfortable fit.

Woolpower - 400g clothing has a unique warming ability because of its construction and material: moisture is wicked away from the skin keeping you dry, while the wool is capable of retaining body heat even when damp.

Woodlore have been proudly stocking Woolpower's woollen garments since 2003, and have no plans of stopping. Their range of base- and mid-layer thermal tops and leggings come highly recommended by both Ray and the entire Woodlore Team. They have become a staple item of our overseas winter expedition kit lists, and are equally important for use back here in the UK.

Buying for warmer climates? Please take a look at our Woolpower - 200g range.

Please note that sizes shown in the drop-down menu are per waist measurement. Sizing in reference to body height of wearer is shown below:
  • S = 170-176cm
  • M = 176-182cm
  • L = 176-182cm
  • XL = 182-188cm
  • XXL = 182-188cm
Colour: Green

Out of Stock in one size:

•  XX Large (44 to 52 inch waist)

This item is out of stock in one size. To be notified by e-mail as soon as new stock is released in a particular size,  please sign up for a restocking notification below.


  Delivery in 1-2 days within the United Kingdom
  UK Orders placed before 2PM GMT will be dispatched the same working day
  Overseas delivery times will vary depending on the destination

Please note that our offices are closed at weekends, so any orders placed after 2PM GMT on a Friday will not be dispatched until the following Monday.

Orders with a total value over £300.00 will be dispatched free via a next day delivery service within the UK at no extra cost.

Please note that in some instances, orders for heavy items may take an extra day to arrive.

  Overseas deliveries
For overseas deliveries, please refer to the following estimated delivery times:

  • Europe: 3 - 5 working days
  • Rest of the world: 5 - 7 working days


A full refund or exchange will be given provided that the items have not been worn or used, and are returned to us within 14 days of purchase, together with all relative labels and packaging. You are responsible for the cost of returning items.

Please ensure that you include a copy of your invoice, along with an explanation of why you have returned your goods. If you wish to return your goods for any reason, please do so to the following address:

Woodlore Limited
PO Box 3
East Sussex
TN19 7ZE
United Kingdom

Product Reviews

Woolpower Ullfrotte Original Long Johns with Fly - 400g - Green is rated 5/5 based on 8 customer reviews.

All of our product reviews are from customers with verified purchases.

Overall Rating:


  1 of 8

  Very happy. Good fit. Good price  

  Gary Oreilly
21st March, 2018

Rated: 5/5

  2 of 8

  As someone who is intolerant of wool, I can't wear these garments next to my skin. However, they are just fine and work superbly over my existing base layers . For this reason I would recommend these as a mid layer (rather than the 200g Ullfrotte base layers) for anyone who is sensitive to wool. Wonderfully warm but thin enough to layer under another mid layer or to enhance the insulation of a sleeping bag. A great addition to my kit, which takes up very little space. Thank you Woodlore for making these available in the UK.  

  Simon Miles
5th October, 2017

Rated: 5/5

  3 of 8

  I do a lot of birding and photography so there is a lot of standing around in the cold. These are a denser weave than the 200g (which are excellent in themselves). I have medium 200g which are a great fit so I went for medium in the 400g and found them a bit tighter around the quads. However, despite the tight fit they are exceptionally warm as under trousers and the tightness has not restricted movement to date. They are noticeably warmer than the 200g so are best used in very cold conditions. Excellent construction and a quality feel to them as expected. Recommended highly.  

  David Grant
2nd January, 2017

Rated: 5/5

  4 of 8

  Warm and cosy.  

  Simon Michell
18th February, 2016

Rated: 5/5

  5 of 8

  Excellent service and excellent product. Thanks for your help  

  Elena Koroleva
13th March, 2015

Rated: 5/5

  6 of 8

  I'm about a 37 or 38 inch waist. I ordered a size Medium (32 to 40 inch waist) thinking the Long Johns would be about correct for me. However, they are WAY too small for me and I cannot get in them. They don't expand and will never be used. I have ordered a size Large in the 200g and they fit perfectly and are a wool long john to be proud of! I suppose down the line when I can afford them, I will order another pair of 400g Long Johns in a size X Large or XX Large to wear over the 200g for colder weather.  

  Thomas Andres
26th March, 2014

Rated: 5/5

  7 of 8

  Wonderful piece of kit and great service from the company. Highly recommended.  

  I A Hancock
3rd February, 2014

Rated: 5/5

  8 of 8

  I have short (32') big legs, and take a medium. These are super; far better than the man-made fibre alternatives. Soft, comfortable, warm, non-smelly. They fit over the 200g perfectly.  

  Paul Cobham
27th January, 2013

Rated: 5/5

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