Free 2-Day Shipping on Orders Over $50*

Detail Images

  • Mammut - RescYou Rescue Belay Device - Aqua/Grey

Current Color

  • Mammut - RescYou Rescue Belay Device - Aqua/Grey

Mammut RescYou Rescue Belay Device


Free 2-Day shipping on orders over $50*

Select your style & size:

Select options
  • Select options
    • Aqua/Grey, One Size

    2 Reviews


    Don't step foot on a glacier without it.

    If your next adventure involves glacier travel, make sure the Mammut RescYou Rescue Belay Device is clipped to your harness. In the event of a fall into a crevasse, the RescYou device allows for rapid self rescue or the rescue of another person with a compact 6:1 pulley system that can be attached directly to your harness. The device eliminates the need for you to setup a time-consuming system in a rescue scenario where every extra second counts.

    • Innovative and compact 6:1 pulley system allows for quick self rescue or rescue of another person in the event of a fall into a crevasse
    • Entire system weighs just 14 ounces and easily clips to a harness
    • Certified to EN 567 standards for rope clamps
    • Includes a safety card with brief crevasse rescue instructions
    • Item #MAM0859

    Tech Specs

    Auto Locking
    Claimed Weight
    14 oz
    Recommended Use
    crevasse rescue
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Mammut RescYou review

    • Familiarity: I've used it several times

    Got 2 of these belay device, one for me and one for my teenager son. The obvious main forte are quickness to set-up (10 sec), ease of use (even with one valid hand or arm), idiot-proof safety (3 auto-locking cams) and no prior special belay technique (Prusik's, Mariner and so on...) is needed to know. Even a child or a woman can operate it without brute force. It works flawlessly on ropes with a diameter between 8 and 11 mm.

    Each one of us is carrying that Mammut RescYou belay device on the back of his harness (see picture) together with 2 ice screws, 4 carabiniers, one nylon 120 cm long sewn sling and a 30 m long Beal Rando Dry Cover 8 mm rope in case of a rescue out of a crevasse while freeride skiing on glaciers in the french/italian/swiss alps.

    Basically, your partner remaining on the surface just has to built a snow (with ski/shovel/pickel) or an ice (with 2 ice screws) deadman anchor, then clamp the Mammut RescYou belay device on the rope and there you're set for a hauling rescue job. Both members of the rescue party can use his own Mammut RescYou belay device at the same time on the rope to speed up considerably the hauling process if needed in deep-freezing temperatures.

    The only cons is its limited use as an ascender only. The complete device cannot be used for an other usage other than hauling yourself or a buddy/payload, in contrast to the Petzl Crevasse Rescue kit where individual components of the kit can be used for other usage.

    Mammut RescYou review

    It looks pretty cool/simple for hauling people out, but is it really safe to use as an ascender? From what I gather, you have to disengage the bottom clamp from the rope to slide it up, which means during that time period, you're relying solely on the top piece, attached to you by some accessory cord. If that busts, you drop back down to ground zero. The only way to avoid that would be to clip into some figure 8 overhands every 10 or so feet below the clamps, but that seems to be more more work than ascending with the classic ATC/prussik combo. The only advantage to this set up that I can think of is if you fell and broke both of your ankles and needed a way to ascend without stepping, but still I don't see any information on the strength of the cord. Is it 6 mm? Does it need backup?

    I hope that made some sense. If anyone has any answers for me, thank you!

    Watch this video. . So the only time you need to take off the grey clamp/ bottom clamp and rely on the accessory cord is when you are passing a knot. You could clip into the knot directly though as the back up.

    Feel free to hit me up at or 801-736-6398.

    Yes, the system is really safe to be used as an ascender, even on an 8 mm diameter rope buried in snow. The device is designed and works as a mechanic clamping ascender

    When the weight load rests solely on the top blue rope clamp, you are connected to your harness by the six-pulley thin orange cord system, allowing you to unload and move up the bottom grey rope clamp. This is normal. If a failure of pulleys, orange cord or clamps ever happens (very unlikely event IMHO), it's a good practice advised by Mammut to make some figure 8 or overhand knots below the bottom grey clamp. See page 16 of the user manual as follows : "When a few meters of slack rope have gathered between the anchor point of the rope and the gray clamp (which is also a fixed point), the slack should be tidied out of the way using an overhand knot tied behind the gray clamp (and attached either to the existing anchor point or to an additional one)". Source :

    The stock orange thin cord that makes the six-fold pulley system is 550 cm long and 3.5 mm diameter low stretch. No idea of composition (polyester ? Spectra ?) nor breakage limits, sorry. Mammut sells this orange cord as spare when excessive wear is present. Pay attention to the user manual caution on page 10 :

    "Service life and segregation.

    The product’s service life depends on many factors such as how often it is used, where it is used, etc. In principle the product is to be replaced immediately:

    -after a heavy fall (extreme mechanical load)

    -after contact with aggressive chemicals

    -in the event of corrosion

    -in the event of excessive wear".

    Hope this helps.

    Can anyone comment on the pros and cons...

    Can anyone comment on the pros and cons of the Rescyou vs a cravesse rescue kit from Petzl??

    Best Answer

    Never used this, but the concept and video make it look pretty cool. 6:1 mechanical advantage of this over a 3:1 z-drag and the time it takes to rig it...and no prussiks! I like the theoretical idea of sitting down and working it without a ton of walking and dragging repeatedly.

    Frederico's video is the best one I found. Kind of vague in some ways, but the basics are there.

    Unanswered Question

    anyone have any first hand experience using...

    anyone have any first hand experience using this? it looks awesome, but would love to hear some reviews. looking to pick one up for a rainier climb. later this summer.