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Ever have trouble finding touring a skin to fit your mega-fat powder ski? Black Diamond's Ascension Nylon Split STS Climbing Skin was made for a ski with a waist of 120mm or wider. Rather than attempt to cover the entire base of your fat ski, this climbing skin uses plush nylon skin material closer to the edges, with a strip of mesh down the middle in order to aid packability and reduce weight. Now your pow ski CAN be your touring ski.

  • Plush nylon material provides steadfast traction on the steepest slopes and smooth glide when you need to conquer a rolling track
  • Gold Label Adhesive sticks to the bottom of your skis in the coldest and warmest temps and remains sticky season after season
  • A section of webbing in the middle of the skins makes for easier packing and quick on and off
  • Split skin-specific tip loop made for the massive shovels found on most powder skis
  • Strong metal wire tip loop fits a wide range of ski tip sizes and can be easily adjusted or replaced
  • STS Tail straps are riveted in place and have an even stretch to provide the snug, secure fit you need to keep skins in place
  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Great for fat skis

  • Familiarity: I've put it through the wringer

These are great skins! I use them with 120 mm underfoot skis. I haven't had any issues with snow getting under the middle nylon strip; maybe that depends on how you cut the skins and the ski shovel shape. If you are breaking trail, there is definitely less grip than wall-to-wall skins (snow compresses across the entire width, and the strip "steals pressure" from the skin). But whatever, just make a lower-angle track. Also, if there is already a skin track or you're on hardpack, the grip is the same as wall-to-wall (because the skin sticks out 1 mm or so deeper than the strip, the skin sees all the pressure). Same for edging traverses. Overall well worth it for the weight savings, especially if your ski is wider than mine.

Stay Away

  • Familiarity: I've used it several times

I bought these for my Splitboard because they were the widest ones I could find and I have a Burton Splitfish (which makes for very wide skis). They got me stuck in the Back country this weekend and I'll never use them again. There is no glue in the center strip and like mentioned snow gets under that part and really messes with the grip to the ski. Also they are not as grippy and I found myself slipping backward on moderate inclines. It's a $150 mistake, STAY AWAY!

Very good product... after trimming!

  • Familiarity: I've used it once or twice and have initial impressions

Cutting them has been a pain in the neck! VERY FRUSTRATING! It is extremely important to get the trimming on the skins perfectly dialed in... and the cutting tool included with these skins does not help at all, it is useless. Also, the screws break and you are left with a job half-done (still have to talk to BD to see what I can do with that).

Next time I'd leave them stretching for a couple of days and not cut them straight out of the box because the skins being folded make cutting them WAY more difficult.

I didn't notice slipping at all, not even on steep slopes. BUT I was using wide skis... the REALLY WIDE 2010 K2 Pontoons.


  • Familiarity: I've put it through the wringer

I'm not really digging the strip in the middle of the skins. When you are exposed while skinning the last thing you want to worry about it your skin slipping. I would go with the non split skins if looking to get out and tour.

I disagree. I think these work great as long as your skis are fat enough.

I've had these skins for the last two (maybe three) seasons, and have never had any problem with them. Certainly, the traction is compromised slightly compared to wall-to-wall carpet. But I find that if I'm slipping on the skin track then so is at least half of the group I'm with. Most of the time, I just set a new skin track, and then everyone is happy.

On the plus side, they come on and off very easily, are much lighter than regular skins, and have proved durable.

I have mine on Voile Drifters with a 125mm waist. If your skis are skinnier then when you trim the skin to fit you're left with very little skin and lots of strip. So I definitely wouldn't use these on skis narrower than 120 mm underfoot.

If your skis are in the 130+mm range, then regular skins are going to way a ton, and these are a no-brainer. And you'll have *plenty* of traction.

Is this the right size for a split board?

These are for super wide powder skis. The word "split" refers to the section of webbing in the middle that shaves off some weight.

If you are in need of some skins for a split board you could probably make these work, but I would check out item number BCC0344 or VOL0015!

How wide is the webbing strip? If I have...

How wide is the webbing strip? If I have 138 underfoot, how much do I loose with the strip..?

Best Answer

It's about an inch. From what I have heard, all sorts of snow works its way under that center channel and starts un-sticking your skin from the middle out. I have skis that are 120mm underfoot and considered these skins for a while but went with normal ones to forgo the potential hassles of my skins coming unstuck. The extra weight is worth it to me because, who want hassles on a powder morning ski tour?