• -11°C
    Top Pick
    Helium GT 600 Down Sleeping Bag Helium GT 600 Down Sleeping Bag

    Mountain Equipment

    Helium GT 600 Down Sleeping Bag

    Weighs
    1114g
    Weighs:
    1114g
    Fill Power:
    700
    Fill Weight:
    656g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    -11°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip
    BG Top Picks:
    Yes
    Type:
    Mummy

    Mountain Equipment's Helium GT sleeping bags are from their Helium GT series of bags which are more generously sized than their standard Helium range, ideal for larger people and side sleepers. Mountain Equipment says: Light, packable but with a slig…

    From: £270.83
    RRP: £316.66 | Save: £45.83
  • 2°C
    Helium 250 Down Sleeping Bag Helium 250 Down Sleeping Bag

    Mountain Equipment

    Helium 250 Down Sleeping Bag

    Weighs
    706g
    Weighs:
    706g
    Fill Power:
    700
    Fill Weight:
    261g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    2°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Mountain Equipment's Helium 250 sleeping bag is from their Helium series of bags which hit a sweetspot for trekking and backpacking, very technical with high warmth to weight ratios they are many hikers 'goto' bag. Mountain Equipment says: Weighing l…

    From: £174.99
    RRP: £208.33 | Save: £33.33
  • -6°C
    Helium 400 Down Sleeping Bag Helium 400 Down Sleeping Bag

    Mountain Equipment

    Helium 400 Down Sleeping Bag

    Weighs
    825g
    Weighs:
    825g
    Fill Power:
    700
    Fill Weight:
    403g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    -6°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Mountain Equipment's Helium 400 sleeping bag is from their Helium series of bags which hit a sweetspot for trekking and backpacking, very technical with high warmth to weight ratios they are many hikers 'goto' bag. Mountain Equipment says: An incredi…

    From: £212.49
    RRP: £249.99 | Save: £37.50
  • -15°C
    Helium 800 Down Sleeping Bag Helium 800 Down Sleeping Bag

    Mountain Equipment

    Helium 800 Down Sleeping Bag

    Weighs
    1215g
    Weighs:
    1215g
    Fill Power:
    700
    Fill Weight:
    795g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    -15°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip
    Type:
    Mummy

    Mountain Equipment's Helium 800 sleeping bag is from their Helium series of bags which hit a sweetspot for trekking and backpacking, very technical with high warmth to weight ratios they are many hikers 'goto' bag. Mountain Equipment says: Perfect fo…

    From: £283.33
    RRP: £333.33 | Save: £50.00
  • 2°C
    Top Pick
    Helium GT 250 Down Sleeping Bag Helium GT 250 Down Sleeping Bag

    Mountain Equipment

    Helium GT 250 Down Sleeping Bag

    Weighs
    710g
    Weighs:
    710g
    Fill Power:
    700
    Fill Weight:
    289g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    2°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip
    BG Top Picks:
    Yes
    Type:
    Mummy

    Mountain Equipment's Helium GT sleeping bags are from their Helium GT series of bags which are more generously sized than their standard Helium range, ideal for larger people and side sleepers. Mountain Equipment says: Light and packable enough for e…

    From: £199.99
    RRP: £233.33 | Save: £33.33
  • 2°C
    Womens Helium 250 Down Sleeping Bag Womens Helium 250 Down Sleeping Bag

    Mountain Equipment

    Womens Helium 250 Down Sleeping Bag

    Weighs
    617g
    Weighs:
    617g
    Fill Power:
    700
    Fill Weight:
    242g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    2°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Mountain Equipment's Women's Helium 250 sleeping bag is from their 'Women's Helium' series of bags which hit a sweetspot for trekking and backpacking, very technical with high warmth to weight ratios they are many hikers 'goto' bag. Mountain Equipmen…

    From: £174.99
    RRP: £208.33 | Save: £33.33
  • -6°C
    Womens Helium 400 Down Sleeping Bag Womens Helium 400 Down Sleeping Bag

    Mountain Equipment

    Womens Helium 400 Down Sleeping Bag

    Weighs
    762g
    Weighs:
    762g
    Fill Power:
    700
    Fill Weight:
    367g (size Regular)
    Down Treatment:
    Standard
    Comfort Limit:
    -6°C
    Insulation Type:
    Down
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip
    Fill Weight:
    367g

    Mountain Equipment's Women’s Helium 400 sleeping bag is from their 'Women’s Helium' series of bags which hit a sweetspot for trekking and backpacking, very technical with high warmth to weight ratios they are many hikers 'goto' bag Mounta…

    From: £212.49
    RRP: £249.99 | Save: £37.50

Down is still has the highest warmth to weight ratio of any bag filling, so the lightest bags for a given warmth rating will be down filled. All our supplier use Ethically sourced down.