neon yellow/black

(11 customer reviews)


No other slipper even approximates the performance of the Vim. Building upon a great last-from-the-past, the name of the game here is comfort that meets performance without sacrifice.  We decided to couple it with a stiff midsole and a beefed-up elastic closure system, creating a powerful tool that eats everything in its way, from overhanging rock to fiberglass slabs. The RS rubber outsole delivers the maximum amount of friction possible, ensuring that every edge or smear holds when the send is on the line.

International Sizing: SEE CHART



  • 3.5 mm RS rubber sole
  • Extended toe rand rubber
  • Midsole stiffness: Medium-soft
  • Lined synthetic upper
  • Vegan


  • Approx. weight: 408 g (per pair)
  • Size: US 4-14 / EU 35.5-48.5
  • Fit: Aggressive downturn


  • Upper: SOLO Suede
  • Insole: SOLO Suede
  • Tongue: Elastic
  • Rubber: RS rubber


  • Elastic


SHORE A65-70

Additional information

Weight 14.4 oz
Dimensions 12.5 × 5.8 × 3.7 in
US size

4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14


Men's, Women's

shoe type


Rubber Click here to learn more about UP rubber
International Sizing Click here to compare shoe sizes by international market

11 reviews for Vim

  1. Blake Bankhead (verified owner)

    First off I will start by saying that these shoes are amazing. Everything you can expect, but better if you wore the yellow bananas. Break in period was quick and these shoes do have a bit of stretch due to the simple design. THAT being said, save the paper in the box and get your butter stick out, because while comfortable once ON your feet, they take the patience of saints and V4+ mono strength to get that heel on without bagging. Remember the old Teams? The Blue ones? It’s that heel. But after about 2 sessions the slipper design did loosen up to make putting on and taking off pretty casual. My street size is 10.5 and i took the full size down to 9.5 ( As recommended) and would say that with the stretch of the shoe that this was the right choice. Great shoe guys!

  2. Matt Gentile (verified owner)

    Amazing shoe! No break in time, the rubber is sticky and performed right out of the box. I’m always worried about heel tabs ripping but these have been holding up nicely for the past couple months. This has become my go to for everything steep, well done!

  3. Aaron Hjelt (verified owner)

    I’m in agreement with the previous 2 reviewers for most comments. This is an amazing slipper. There is very little to improve on. I’ll add a few more thoughts. The fit is much more refined than the V10, which allows a more accurate sizing. In other words, it isn’t necessary to cram your foot into the absolute smallest size to achieve the best performance. Because of the fit, materials, and rubber, a more natural foot position can be maintained. Which just comes with more comfort. The Vims do tend to cater to a mid volume foot, especially one with a high arch. The last the UP has developed, which is obviously based on a legacy of high performing shoes, rewards the climber who uses the foot similarly to the hand, with precision and awareness.
    Who/what is this shoe for? For my needs, it is the ideal gym shoe. Where I want precision, softness, slip on and off convenience, the Vim is perfect. I want my training shoe to be soft underfoot in order to develop strength and structure, but I also don’t want the shoe to be baggy. The Vim achieves this need. The RS rubber is sensitive, but it also appears to have enough durability to last.
    As for sizing, I sized the same as the black Teams, new Hiangles, Dragons, and Arrowheads. At 7.5, the Vims fit slightly larger (maybe 1/4 size) than my Regulus LV (9.0 womens or 7.5 mens equivalent). I wear an 8.5 approach/trail shoe). I could get my foot into a 7, but this would be self-defeating, in my opinion. Break-in was one gym session. They softened up significantly within this time.
    The rubber is amazing. I have been training with high reps on a wood hold system wall, and the RS rubber has given me the confidence to implement larger (potentially higher risk for injury) moves into my routine.
    Finally, the value of this slipper is incredible. Do not hesitate.

  4. Bryan Ebert

    Incredible slipper. Does well on all terrain. This with a pair of Up Moccs will get you up anything you could want to climb.

  5. ywzmatt (verified owner)

    Fits well, great sensitivity and perfect softness for bouldering. Only problem is it is incredibly difficult to get on, much moreso than similarly fitting shoes from other brands, and the stitching for the pull loops is already fraying and seems to be of rather low quality. Will probably knock off another star if the pull loops actually rip, but for now I am leaving it at 4.

  6. chris b

    My absolute favourite shoe of the range so far. Have been trying the Regulus, Leopard, Sirius and the Vega, but nothing comes close to the performance of the Vims on steep terrain. Got these a half size down of the other models (cause it´s a slipper). I was also surprised how well these shoes heelhook despite being slippers (put a velcro on it and it would be absolutely perfect). And yeah, the rubber could be the stickiest one on the market right now. Big up Unparallel!!!

    PS: UP shoes are hard to get in Europe…

    cheers from Austria

  7. Kyle Blase

    These shoes seem great, but I would not recommend sizing down at all. I have a 10.5 in the up mocc and I could probably even go down to a 10 for a more aggressive fit. I got a 10.5 in these based on others recommendations to size down, but they are wayyyyy too tight. After 10 minutes of trying, I managed to get my feet in, but they were way too narrow and low volume for my foot. I ended up climbing 3 pitches in them and then vowing to never put them on again, because they were jacking up my feet with how tight they were. They seem like great shoes, but the tears prevented me from enjoying them. My street shoe is 10.5-11, and I would not be able to wear these in less than an 11. That said, I do have wide feet. I have a pair of regulus in size 11, and they are tight, but manageable and breaking in. Be careful sizing these down. I think even a size 11 would be extremely difficult to get on, but would likely be ok once on. So 4 stars because of the difficulty in getting on, and also the horrible yellow color. Please make these in a color that isn’t so ugly.

  8. Sam

    A phenomenal training slipper that has great elements of comfort, yet also provides an element of aggressive fit you’d normally see in your project shoes. And the heel!! Oh my, it doesn’t fall off when you heel hook your whole body weight. I love them. I recommend street shoe size or a half size down, both have worked for me so far. Just be prepared with having trouble getting them off your feet the first few sessions.

  9. Dan

    So I bought these six months ago, I was at best a 5.12 climber. I put these on for the first time and straight up on sighted a 5.12c! I felt like a superhero high off cocaine! 6 months later and they’re still my go to shoes. These are the bees knees! I’m tellin ya to get em. Slip em on, mmmmm that’s nice. No space in this. They were molded by the gods.

  10. ZB (verified owner)

    Favorite shoe by far.Bbeen wearing them since they came out. I mainly do overhung climbing which these are amazing for. I find my feet sticking to edges and smearing very well, first shoe I’ve wore that can do both this well. Very comfortable shoe doesn’t fell bulky but it’s not a sock. Awesome fit, lasts a long time, I feel like a samurai.

  11. Joshua

    I followed the first two feedback on this page, to downsize in 1-full size. I am size 42 (street size) and order 41 on the Vims. I managed to squeeze in using the plastic sock technique. To be completely honest, It wasn’t the most comfortable shoe, or maybe it needs more breaking-in time. Overall good design, beautiful colour.

    If I was to order again, I’ll order the same street shoe size for comfort fit and a half size down for performance fit.

    3-star for good shoe design.

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