Arc'teryx Veilance Spere SL Pant Review

Introduction

The Spere SL Pant is in my opinion one of the most minimal pair of trousers Veilance makes.

Think of it as a technical answer to the linen trouser: the same easy, breathable, warm-weather ease, but with more structure under it and the finishing I have come to expect from this brand. I feel like Veilance are branching out to using more natural fibers, with synthetics getting a bad rep and consumers being more savvy about high quality clothing - which often boils down to natural fabrics.

Of course, Veilance uses a cellulose and nylon blend due to the quick drying, wicking and durable properties of the latter. The ripstop look adds a technical layer to it plus some more visual flair and texture.

There is almost nothing to these pants. No stretch, no DWR, no hardware you can see. You have to look closely to work out where the money went. Lucky for you - or not - looking closely is the whole reason I spend time sharing my opinions here.

Veilance's design language has always pulled me in: all those architectural, brutalist lines. But for the longest time, anything filed under "technical performance clothing" (a phrase that makes me curl up a little) was hopeless in actual heat.

The predecessor to these, the Terratex Spere Pant, is a good example. Terratex is a nylon and elastane blend, and I never found it convincing once the temperature climbed. Clammy. And it attracted dust and lint better than an actual lint roller.

So when I saw the Spere SL was built from so called Ondritex, a cellulose blend that actually breathes (cellulose being, essentially, paper), I wanted to see, and most of all, feel it for myself.

Materials & construction

The Spere SL is cut from Ondritex, a nylon and cellulose blend, and the cellulose is the part I keep coming back to.

It gives the fabric a natural handfeel, genuinely pleasant on bare skin, without the faintly clammy hand you get from a fully synthetic face fabric. A fine ripstop grid runs through it for structure. It is light, but it drapes with a bit of body instead of clinging, and picking the whole pant up, you almost do not believe the weight.

Where it really wins is in heat. I wore these through recent West-European heatwaves that hit 40°C and never got the clammy feeling I had long since resigned myself to with, for instance, Terratex pants.

That alone is most of the reason I kept reaching for them.

As a bonus, Ondritex does not magnetise dust and lint the way Terratex does. My gut feeling tells me this also has to do with the nature of DWR - experts on the matter can always contact me to help me understand.

Here is the part that surprised me. On the Spere SL, there is no DWR coating at all, and yet the fabric dries extremely fast.

Most technical trousers lean on a water-repellent finish that wears off and needs reviving. This one skips that entirely and just sheds moisture quickly instead. I suspect the lightness of the nylon/cellulose blend is doing double duty, giving both the natural hand and the quick drying.

I put that to a decidedly unglamorous test. I got caught by one of those restaurant faucets that is far more aggressive than it has any right to be, and the splashback landed exactly where you would least want it to. Under ten minutes later: bone dry, no evidence, no shame.

The fabric has no stretch. On something this stripped-back, movement has to come from somewhere, and here it comes from the cut. Darts and articulated patterning, the same approach Arc’teryx and in extension Veilance are known for, let the trouser move with me instead of fighting me. The taped seams sit flat, and I never once noticed them against my skin. A gusseted crotch, a big panel that reaches almost from knee to knee, adds durability and mobility when squatting down.

The waistband is laminated, comfortable, and finished immaculately. The hem is laminated too. This is the quiet, precise detailing that reminds you what the price tag is for.

One honest thing. The fabric creases easily, almost certainly down to the cellulose, and you will see that in my photos. It is not a flaw exactly, more a personality trait. Just know it before you expect a pressed look all day.

Features

For something this pared-back, the Spere SL hides five pockets.

Two are open front hand pockets. The left one conceals an internal zipped pocket, and I use it constantly. It is exactly the kind of secure stash spot you want when you are travelling.

The rear pockets are very basic. They are open, and loose, and offer storage for small flat items that do not need any securing at all.

These rear pocket bags are not anchored. In construction terms they are missing the bar tack that would tack the pocket bag down to the seam, so when I reach in and pull something out, the whole bag tends to come with my hand.

My thesis (on rear pockets, really?) is the following: floating the bag keeps the rear panel clean, with no visible tack or dimple on the outside, and on non-stretch Ondritex a tacked-down bag is exactly the sort of thing that would pull at the face fabric. So it looks like a deliberate choice for a cleaner seat. That is also why it frustrates me rather than earns a pass. A single discreet bar tack, or catching the bottom of the bag into the seat seam, would have killed the flip-out for almost no cost to the look. They had a cheap fix and chose the cleaner look instead.

Although a front flap suggests it, there is no actual zipper. This feels like cheaping out and is something I truly miss.

With there being no belt loops, the pants are held up via a laminated elastic waistband plus a drawcord, hidden on the inside. With a simple knot, these pants don’t come down during the day although I wonder why the designers opted to use a drawcord made from the same material as the pant itself. It doesn’t handle too easily.

How it wears

The Spere SL wears easy and relaxed. Because the movement is engineered into the patterning rather than the fabric, it flows through most of a normal day without ever feeling tight.

I wear a Medium, 32 waist, in Veilance, and these come with a 31 inch inseam. They fit true to size, so do not downsize. On my 180cm frame they run a touch long: they stack nicely over a pair of derbies, but I am tempted to have them hemmed all the same.

The bike is the one exception to the easy wearing. With no stretch to give, this is where the fabric holds me back, and cycling is the situation I would think twice about before buying. The wider lower leg could also amplify your chances of getting caught in your bike’s chain or belt.

Care & durability

I wash mine with a technical detergent and hang them to dry. With no DWR to revive, care is refreshingly simple. There is no finish to reproof and nothing to reactivate. Be sure to flatten any creases as these won’t disappear magically as with some fully synthetic pants. If they do appear, a quick steaming has done wonders for me.

Two months of heavy wear in, they still look fairlt new. Encouraging, but it does not settle the question that hangs over anything this light, which is the old trade between very light and very durable.

The thing I am actually watching is the lamination. I have rarely seen Veilance tape come loose. The one exception in my closet is a very old pair of Voronoi in a nylon and cotton blend, where it eventually let go.

That is why Ondritex gives me pause.

It is another step toward natural fibres, and natural fibres are where I have watched their lamination struggle before. So the waistband, the hem, and the taped seams are what I will be keeping an eye on, and I will report back.

Verdict & Hidden Interests

I rate the Spere SL Pant highly. It is extremely light, dries almost on contact, and wraps a genuinely comfortable, secretly hardshell-adjacent construction in the clean finish Veilance is known for. Most of all, it is a welcome move away from the purely synthetic. However, this is clearly a departure from their all-out design and feature-laden past.

Where do I think Veilance goes from here?

More minimal, I suspect. Fewer panels, simpler construction, which conveniently also means fewer failure points and lower cost. The finish is still on another level, but the sheer amount of panelling on my pre-2019 pieces simply is not there any more, and I have mixed feelings about that.

Aggressive panelling and complex construction are what pulled me in. From a technical standpoint, though, you could argue this is simply optimisation: the logical next step as the design language is refined to its essentials. Visually, however, there is less and less to set Veilance apart from other minimalist brands.

What I applaud without reservation is the experimentation with natural fabrics. Synthetics are brilliant when you actually need them. For comfort, natural fibres win almost every time, and the Spere SL is early, promising proof of what that can look like at Veilance.

A couple of feature decisions lower the score. Everything else, I would happily wear all summer.

7/10

The Spere SL Pant was available for €350 at Veilance at the time of writing.

If you are curious about pre-2019 Veilance, our Survey Jacket review is a great place to start.