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Mountain Equipment Aerostat Synthetic 7
    Mountain Equipment Aerostat Synthetic 7
    Purchase Mountain Equipment Aerostat Synthetic 7
    • Mountain Equipment Aerostat Synthetic 7

    • £135.00 (RRP:£150.00, Save 10%)

    • Option:

    • Delivery: Free UK Delivery on all orders over £30
      Order by 2pm for same day dispatch (M-F).
      Full UK and International Delivery details.
    • Returns: 60 Day returns
      Return unwanted goods within 60 day
      For more info see our full Returns Policy
    • Customer Rewards:
      You'll earn a Facewest Credit of £6.75 with this item. Details here.


    The Mountain Equipment Aerostat Synthetic 7 provides the perfect combination of thermal efficiency and tactile comfort. It is 7cm thick and contains Polarloft synthetic insulation providing excellent protection from the cold ground. It packs away fast and is compact, saving space in your pack making it ideal for fast and light adventure racers, alpine climbers/mountaineers and minimalist backpackers/bivviers.

    The mat is inflated using the provided Windsock, this is easily operated/connected to the Gas Mask valve and fills the mat in only four inflations. It also doubles up as a lightweight stuff sack for the mat. The two-way Gas Mask value allows inflation without any air escaping yet it will also allow the air to be dumped out quickly when you need to pack it away. The valves are clearly labelled IN and OUT ensuring you use the correct one.

    The Aerostat Synthetic 7 is constructed utilizing vertically aligned baffles and internal foam plugs that eliminate cold spots and promote a stable and supportive air cushion. The sturdy outer is a puncture resistant 30 denier ripstop nylon fabric with TPU lamination making the mat durable and airtight yet still lightweight and packable.

    Mountain Equipment Aerostat Synthetic 7 Features

    • 100g Polarloft synthetic insulation
    • Vertically alligned baffles
    • 30D ripstop nylon with TPU lamination
    • 2-way self-sealing Gas Mask valve for inflation / deflation
    • Windsock doubles as a lightweight stuff sack
    • Supplied with a repair kit
    • Good Night's Sleep Guaranteed -25°C

    Regular185cm54cm7cm25 x 10cm 4.0 -25°CPolarloftWindsock665g
    Wide Regular185cm63cm7cm25 x 10cm 4.0 -25°CPolarloftWindsock735g
    Long200cm60cm7cm27 x 10.5cm 4.0 -25°CPolarloftWindsock765g

    Customer Reviews of Mountain Equipment Aerostat Synthetic 7

    Mountain Equipment Aerostat Synthetic 7 Review
    Verified Buyer

    Also so far only tested in the garden along with an MLD Trailstar, MLD inner nest and 3 season sleeping bag. Worked well in above zero temperatures to protect from a very cold (and outside the nylon base of the inner tent very wet) ground. Certainly comfortable enough to sleep on. The inflation device is fiddly in the cramped space of the half Trailstar inner, and I'm not sure how well it avoids moisture. Shorter and wider would have seemed better. It did inflate well with a couple of goes. The mat packs away quickly and easily which is great.

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    Mountain Equipment Aerostat Synthetic 7 Review
    Jon A
    Verified Buyer

    Only tried in garden bivvy during lockdown so far... and is luxurious compared to my old thin mat. Seems to be the good alternative to Exped (only 20D fabric) and Thermarest (pricy, reputation for being noisy).

    But weight is misquoted here - regular is 665g not 530g. Windsock inflating bag works ok, not sure what the benefit of it being long/thin is - it just had to be different from other brands?

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