The merino wall is at the back, past the packs. Black, charcoal, navy, slate, and a grey the swing tags have given a weather name. Rack after rack of it, in a shop whose entire business is being outside. Nobody publishes a colour breakdown of the base-layer category, so I should say plainly that this is a wall I can see and cannot count, and that your nearest shop is the check on me.
It was not always this way. The polypropylene a lot of us grew up wearing on bush walks was loud and stripy and slightly hideous and completely alive. Somewhere between that and this wall the colour left, and I wanted to work out exactly where it went.
Grey is what performance looks like
The obvious reading is that grey is what performance looks like, and most of the case holds up. Muted layers do not clash with a pack or a shell. Dark wool carries five days of hut dirt without announcing it. Restraint reads as premium and adult, and a whole quiet-luxury logic says the good stuff whispers. Colour is inventory risk as well: an ochre that does not sell gets marked down, and a black never has to be.
All of that is true. All of it is also downstream. Not one of those reasons is about how the fibre works, and how the fibre works is what the category spent thirty years proving.
Grey is a signal, not a feature
Grey does nothing for warmth and nothing for wicking. Merino performs identically in ochre and in charcoal, and colour is one of the few properties of a base layer with no bearing at all on the job it does. Grey is not a feature. It is a signal.
The turn is in the record, and the record has a date on it. In 1994 a 24-year-old New Zealander, Jeremy Moon, was shown a merino tee by a high-country farmer. He founded Icebreaker the following year on about $200,000, and pitched it directly against what he called the “hegemony of synthetics”. (Icebreaker 2026) (GearJunkie 2026) To make that argument, merino had to get out from under a century of long johns: the white, daggy, faintly embarrassing thing your grandfather wore under his overalls. So the category changed its name, from underwear to base layer, and then changed its clothes, borrowing the visual language of serious technical equipment. Micron counts. Weights. Matte, dark, engineered. It worked completely. Merino became respected, premium, and grey in a single move.
I want to be careful about what the record shows and what it does not. It shows the date, the founder, and the positioning. That the colour left as part of that campaign is my reading of the sequence, not a documented decision, and no memo I have seen says drain the ochre out of it. What the record does rule out is the comfortable version. The colour did not go because performance required it to go. It went while a category was buying its way out of a joke.
The same trade, where somebody counts it
Cars are not base layers, but car paint is one of the few places this gets measured. Axalta publishes an annual census of what colour the world’s new vehicles are painted, and in the 2023 edition 31% were white, 22% grey, 18% black, and 10% silver: four shades with no hue in them holding about 81% of everything built, with grey passing black for the first time. (Axalta 2023)
A colour census of cars proves nothing about wool. What it establishes is that the wall in the outdoor shop is not a quirk of one category, and that where a serious, expensive, grown-up market does get counted, the colourless part of it is the overwhelming majority.
It is a strange trade when you lay it out. A category usually does get better as it matures. The craft improves, the materials improve, the construction improves. The joy gets quietly designed out at the same time, as though seriousness and delight could not occupy the same object. We got better merino and duller merino in one move, and told ourselves the second was the price of the first.
It lands hardest in a country of trampers. The people who spend the most time outside, on the tracks and in the huts, wearing this stuff for days at a stretch, ended up with the most joyless wardrobe of all, dressed for the hills in the colours of an accountant’s office. The old polypro was genuinely ugly, but it knew it was going somewhere fun. The merino that replaced it is beautifully made and dressed for a funeral.
What actually went grey
A code, then, and not a law. You can take the fibre completely seriously, the micron count, the weights, the construction, and still let it come in colours named after the huts you would wear it to. Nothing in the wool objects. The wool won its argument thirty years ago. The colour was collateral in that campaign, and the people still paying for it were not in the room.
So the question at the end is not really about merino. Why is it that the moment we decide something deserves to be taken seriously, the first thing we do, almost without thinking, is drain the colour out of it? I do not have a clean answer. What I have is the test that tells a law from a habit: a law would show up in the fibre, and this one only ever shows up in the buying.