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UltraLite Mix STS Climbing Skins

$179.95 $134.96
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UltraLite Mix STS Climbing Skins Drag to zoom



With a redesigned construction that offers drastically less weight and improved packability, our UltraLite Mix STS skins feature a mohair/nylon mix, a replaceable Dynex and aluminum tip loop and our versatile STS tail attachment. READ MORE
Item# BD16383200001251
$179.95 $134.96



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With a redesigned construction that offers drastically less weight and improved packability, our UltraLite Mix STS skins feature a mohair/nylon mix, a replaceable Dynex and aluminum tip loop and our versatile STS tail attachment. Learn More


From mid-week dawn patrols to remote ski expeditions, the Black Diamond UltraLite Mix STS skins are ideal for when efficiency and packability are essential. Built with our mohair-nylon mix and a completely updated construction that makes them 20% lighter and more packable, the UltraLite Mix STS provide the perfect balance of lightweight glide and uphill traction. An innovative Dynex™ and aluminum LT tip loop provides a secure and field-replaceable connection, while our reliable STS tail attachment allows for up to 10 cm of adjustment.

  • Mix of 65% mohair and 35% nylon
  • Redesigned construction is 20% lighter and more packable
  • Ultralight, field-replaceable Dynex™ and aluminum tip loops fit wide range of ski tip shapes
  • Patented STS tails provide 10 cm of length adjustment
  • STS tail allows for easy adjustment between different skis or one-and-done tensioning

Tech Specs

Weight Per Pair :   [110 mm] 586 g (1 lb 4 oz)


UltraLite Mix STS Climbing Skins is rated 2.9 out of 5 by 17.
Rated 4 out of 5 by from Just as ecpected I have only been on these for a couple days now skinned only packed powder/power, but they seems to be on par with my GlideLite mix skins just lighter and more packable. After reading the reviews I was hesitant to buy these for my new skis, but happy to find out the glue is even stickier than my GlideLite skins which is a plus! They don't seem to collect snow in the tips as much as my GlideLites, even while breaking trail in blower pow. Only 4 stars because I have yet to use them in spring conditions and I listened to the other reviews and installed the standard BD tip loops. Very happy with them so far!
Date published: 2019-02-17
Rated 2 out of 5 by from Tip loop troubles I have had these skins 2 seasons, I will admit the glide and the glue have been great. The glue has been crazy strong. They do pack way smaller and lighter than my old orange synthetics from BD. I have had two episodes of tip issues with the plastic clamp, one time it broke and I needed to duct tape the tip of the skin to my ski. The other time when removing the skin the dyneema loop pulled through the clamp, thank fully I was did not need my skins again that day. I always make sure to carry duct tape with, and have a spare clamp replacement but would also need a heavy multitool to be able to replace it which kills the point of the super light skins. I would prefer a few more grams of weight for a tip attachement that is more reliable. I am going to look if some other tip attachment can be connected.
Date published: 2019-02-03
Rated 5 out of 5 by from Great skins I think i'm going on my 3rd season with these skins now and they are great, first mohair (mix) skin i've used and the glide is way better than my nylons. Also the glue has been great for me, not sure why everyone else is having trouble, had glue problems with my previous skins and my roommates g3s are dead after a season. The BD glue is almost too strong at times it! It can be hard to rip the skins apart. The tip connector is funky and not confidence inspiring, but so far it has been working great. Also i get a small amount of snow that sneaks in between the skin and the ski near the tip on the sides, but its never effected performance and from reviews i read is due to the thin-ness of the skins (which is great these things are so packable!) So the trade off is worth it to me. I did iron the glue once using the paper sheets the skins came on to smooth the glue out which worked great but i think that is just basic maintenance after a few seasons
Date published: 2019-01-21
Rated 2 out of 5 by from Good skins, but bad tip conenctor is flawed Good skins overall, unless there is lots of snow. I like that they are lightweight. Used them 6-7 times now. They tend to get wet and snow can stick on the plush if warm weather but not a major issue. What i'm struggling with, however, is the tip connector. It is too narrow and too low on the skis so snow necessarily creep between the ski and skin depending on the snow and length of usage. Had to break trail yesterday and so much snow got in that I could not put the skin back on for a second hike up. I had to use two ski straps... which takes away the benefit of the skins I was looking for. I'm thinking of buying the Ascension tip connector to replace this one, but will have to cut about 4 inches of the upper part of the skins to make it fit... so not sure I have enough. I was hesitating between the STS or the Ascension... should have gone with the other ones..... :(
Date published: 2018-01-24
Rated 1 out of 5 by from Tip connector is too narrow I have used these for one season with my Helio 116 skis (which by the way are awesome). Unfortunately they roll up from the sides and collect snow underneath. I've tried recutting them thinner and thinner in the tip but nothing works. The tip connector is just too narrow for wide skis/skins. Just make it wider, it will only cost a couple of grams. I had to go and buy a different pair of skins instead
Date published: 2017-11-15
Rated 2 out of 5 by from Light and packable, poor glue 4th pair of Ascension/BD skins in 18 years of touring, first I've ever been disappointed in. My first skins were Pomoca with weak glue, however it was a good learning experience on proper skin care on the trail and I have prided myself ever since on taking care of them and having zero skin failures since getting rid of the old skins and picking up some purple Ascensions. Each generation since have worked great, never an issue. When time to pick up some new skins I thought I'd venture away from straight nylon and try a mix. Better glide sounded nice and figured I could deal with any loss of grip, assumed glue would be just as phenomenal as all the other purple and orange skins have been. Found otherwise on my very first tour with these sadly. Top of first climb, edges of skin had peeled from from skis most of the length and all the way across on the tips. I muddled through about 10 tours on them last year being very careful- in the jacket after every climb to melt the snow from glue- a move reserved for emergencies in the past. Luckily no complete failures though it was always on the edge of coming fully off. First tour of this year yesterday, had my first full loss of skin, good thing I had some hockey tape in the pack to finish up the day. Not confidant in these anymore, they hardly stick to themselves at room temp. Back to the old back up orange skins and straining to pull them apart at each transition. Will definitely miss the packability of these, but not much else.
Date published: 2017-11-04
Rated 1 out of 5 by from Extremely disappointed. Let me preface this review by saying this: this is the first product from Black Diamond I've ever had serious issues with. It's also a new product and all new products take time to R&D. I'm not writing this review to reflect negatively on BD, but to hopefully aid in the continuation of what could be a very good product in the future. Let's start with some pros: These pack down to absolutely nothing. The saved space in your pack is instantly noticeable. The glide is second to no other pair of skins I've tried. And I've tried plenty. These weigh nothing. I'm certainly not a gram-pincher but even I will admit that the difference on the up was noticeable. Some cons: On my first tour on these skins they glopped up harder than any pair of skins I've ever owned. By the end I was cursing Black Diamond and rethinking the very concept of brand loyalty. After throwing a very thin coat of wax to the fabric the glopping was midigated to a level that was barely acceptable. This isn't a new concept to me. I've had skins attract snow before. But never on the first tour in what was relatively dry snow. This is typically something I see touring through trees in the spring; going from very dry to very wet snow and back again. After getting about five tours in on these skins I hesitantly took them on a 6 day hut trip. At the last second I docked my beer supply at the last second and filled the new found space in my pack for an older pair of BD skins as back ups. I was glad that I did. After a few tours the skins started to peel up from the edges of my skis in the tips. This led to the skins being held on only by the tip clip from the binding forward while snow was able to pack up underneath the skins and fold the edges inward. That great glide they had? Gone. I believe this happened as a combination of the very thin design and less than satisfactory flue. I used two ski straps to get me to the summit and then used the backup skins for the rest of the trip. After getting back to the hut I went to pull apart these skins apart. (I don't generally use cheat sheets while transitioning. I do use them once I get back to the car) When I pulled them apart they tore a nice 4 inch long very straight tear down the middle of one skin. Now let me be clear, after many years of using G3, Pomoca, and BD skins I have never torn a pair of skins. Seeing this after 6 tours made me decide these just aren't for me. After skiing a few missions this summer on the above mentioned older pair of skins I pulled these out of the drawer I'd been storing them in to see that they are now transferring glue to my hand on touch. These have never seen extreme temperatures. They've been stored in my house in a dark cool drawer where I've stored my other skins and I've never had this problem. At this point I'm pretty much ready to toss them and chalk it up as a debt paid being an early-adopter to a new product. To recap, Pros: -Extremely good glide -Insanely packable -Very low weight. Cons: -Glopping right out of the box. -Poor glue adhesion in the tips when breaking trail. -Less grip while climbing than other skins I've tried. (Though this was to be expected and did not come as a surprise to me) -Very poor durability. Black Diamond, I like your concept here but these need refining. I hope you continue to work on the intricacies of this design so I can return to it in a few years.
Date published: 2017-10-09
Rated 5 out of 5 by from good tool to earn your turns... Been using the UltraLite Mix STS for more then 30 days past winter and I am super happy with that skin. Had no problems at all. Used them on my Carbon Convert 180 and on my Helio 185, just changed the position of the back clip... Like the lightweight and pack volume very much. Never used the cheat sheet and it was not difficult to pull the skins apart. Only for storage in summer I put the sheet... First I thought the skin will wear out fast, but it doesn't show more use marks then any other lightweight skin I used before... even thought the tip piece will not last, but no damage on it yet... the skin never came off, even putting it on several times a day... will use that type of skin in the future... good tool for my guiding activities...
Date published: 2017-06-05
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