Silly question probably, but for UL wouldnt down trousers make more sense than bags?

Discussion in 'Sleeping Bags & Quilts' started by CleanSimon, Dec 28, 2020.

  1. CleanSimon

    CleanSimon Trekker

    So thanks to all on this, i learned that its the shell that makes the weight and thst the trouser/jacket would be heavier and less efficient. I learned that options do exist for those racing who would find it more practical and put up with the discomfort to assist race effort. I learned people use down clothes to bolster warmth of bags or just clothing when cold, and that an unpredictably interesting night can be had in a bus shelter. Most importantly, once again it proves this is a good platform for ideas and access to people who share their knowledge and opinion, so thanks all for your contributions!
    Michael_x, gixer, tom and 2 others like this.
  2. tom

    tom Thru Hiker

    Weight is only a part of it and it indeed won't matter much for an overnighter.

    But if I'm going on a thru-hike it does matter and its a straightforward calculation:
    My PhD k-series down trousers (133gr) add 5 Celsius to my 20F quilt (a down jacket I carry anyway in the alps).
    So my down trousers equate to approx 80gr quilt weight saved (the difference between a 10F and a 20F quilt). Plus another 200 to 300gr saved on heavier or insulated trowsers.

    Thats easily an extra evening meal I can take (extending my resupply window). Plus I don't have to crawl into bed to stay warm and comfy in camp :)
    cathyjc, edh and WilliamC like this.
  3. The Yank

    The Yank Trekker

    You also might consider a bag with differential fill such as the Feathered Friends Vireo. Everyone's probably already aware, but the top half is filled to rate at 7*C and the bottom half -4*C (950 fp). No zipper so it's for the super hardcore ultralight. Just pair it up with a 7d shell down jacket and you're about as efficient as you can get.The MLD FKT Quilt is also differential fill, however, it's Apex and heavier of course. It does have a poncho head slot option though.

    https://featheredfriends.com/collec.../feathered-friends-vireo-ul-down-sleeping-bag.
    https://mountainlaureldesigns.com/product/fkt-quilt/

    If I was going for down pants the 8d shell Goosefeet Gear custom would be my first choice. $170 USD. Not sure how much import duties would hit you.
    https://goosefeetgear.com/products/down-pants/
    Last edited: Jan 1, 2021
    WilliamC likes this.
  4. Swayndo

    Swayndo Backpacker

    I bought a pair of down trousers for this. I'll not be planning to stop for a sleep/camp but if I need to crash and get a couple of hours down I can just pull them on over shorts and stick a down jacket on. It won't be about comfort and tbh won't be any worse than crashing on a hard wooden bothy floor for a couple of hours on a thin torso mat and light quilt (which I did last year).
  5. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    When I specced my EE quilt I got Tim Marshall to bias the fill to the legs and foot. I add whichever insulated jacket I've taken to suit the season to the system to compensate. When it's cold enough to warrant taking insulated trousers (always more breathable than a down item or I can't use them for walking in), I take an extra warm jacket too.
  6. Rob Mac

    Rob Mac Day Walker

    First post so bear with me . It’s not something I would personally try (again) but I consider a few scenarios important.
    1. As mentioned OMM raid have this and it fits a specific very fast (not in my case) and light usage. These are the teams that also use and then dispose of bubble wrap for mats. I am sure the weight saving is worth it for elite pairs.
    2. We have all been in situations where down trousers and jackets would be a gift but for long nights (5.00pm - 8.00am right now) it would be sole destroying! Simply the act of getting into the sack when it’s time to sleep has a big benefit in my view.
    3. Similar to above but a bag gives certain comfort when sleeping. Weight gained versus lack of mental strength the following day is a factor.

    I tried to have one night North of Arctic circle in -15oC wearing (mainly Rab) base, fleece leggings and synthetic over trousers plus enough on top to insulate a loft. No bag. Warm yes, uncomfortable yes, do it again no. I only did it to try out gear for an imminent arctic trip. (Nothing was lightweight!)

    Keen to hear how you get on!

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