AutoSock review: the snow sock, assessed on its published limits
This is the product that made textile traction devices legitimate. It is also a product with three published limits that rule it out for some drivers entirely - and they are not on the front of the box.
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What it is, and why it is not a gimmick
A snow sock is a textile cover that pulls over the tire. The fabric wicks the thin film of water that sits between rubber and ice - the film that is the actual cause of low grip - and gives the tire something to key into. It sounds like a joke until you see the certification behind it.
AutoSock publishes certification to EN 16662-1, the European standard for textile traction devices, along with compliance with ÖNORM V5121 and the French Loi Montagne. For US drivers, the claim that matters is that it is approved in every US state with chain laws, which is the difference between a product that helps and a product you can legally use when the sign says chains required.
That is the case for it. Now the limits, because they are what decide whether it belongs in your trunk.
The three published limits
1. Thirty miles an hour. AutoSock publishes a maximum of 50 km/h - 30 mph - for passenger cars. That is not a recommendation about safety in snow, it is the operating limit of the device. If your winter driving is a freeway commute at 60, this is the wrong product and no amount of convenience changes that.
2. Not for bare pavement. Textile devices are published as intended for intermittent snow and ice, and running them on dry road shortens their life. Chains punish you immediately and audibly for this; socks do it quietly, by wearing out.
3. Driving wheels only. AutoSock publishes that the socks are fitted to the driving wheels, which is the same rule as chains - front on front-wheel drive, rear on rear-wheel drive, and the manual decides on all-wheel drive.
| What AutoSock publishes | |
|---|---|
| Certification | EN 16662-1; also OENORM V5121 and French Loi Montagne compliance |
| US legality | Approved in every US state with chain laws |
| Maximum speed | 50 km/h / 30 mph |
| Fitment | To the driving wheels; sized per tire size |
| Installation | Published as a three-minute job, fitted top-down then rolled on |
| Bare pavement | Shortens functional life - remove when conditions allow |
| Care | Shake out, dry before repacking; machine washable at 40 C / 100 F |
| Lifespan | Hundreds of kilometres when used on appropriate surfaces |
Fitting them, which is the whole appeal
The published procedure is three steps: pull the sock over the top half of the tire and down as far as it goes, move the vehicle half a wheel turn, then pull the rest over. AutoSock publishes three minutes for the pair.
That is the argument against chains in one paragraph. Chains want a jack-free layout, tensioning, a re-check after a hundred yards and usually a lie-down in slush. Socks want your hands and half a wheel rotation. If you have ever fitted chains in a pullout on a pass with traffic going past, the difference is not a small one.
The flip side is durability. Chains that are fitted properly last years; socks are published in hundreds of kilometres, and that number falls fast if you forget to take them off when the road clears.
When socks are the better buy, in plain arithmetic
Ask how many times a winter you will actually fit them.
Twice a year, to get over a pass or out of a storm: socks. Three minutes each time, hundreds of kilometres of life is more than you will ever use, and they live in a bag the size of a sweater.
Every week, on a mountain commute: chains. You will exhaust a set of socks in a season, and the 30 mph limit will be a daily constraint rather than an occasional one.
Stuck in your own driveway: neither. That is a traction board problem, because a stationary wheel in a rut needs something solid under it rather than a better surface around it.
Skip this
Skip AutoSock if any of these describe you
You need to drive above 30 mph with them on. The published limit is the product's limit. Chains are rated higher and are the right tool for sustained driving.
Your roads alternate between bare and snowy. Every mile of bare pavement eats into a life measured in hundreds of kilometres, and stopping to remove them every few miles defeats the convenience.
Your vehicle's manual prohibits traction devices, or specifies a clearance you do not have. Socks are low-profile and usually fine where chains are not, but the manual still decides - and clearance is the specification that rules on modern vehicles.
Living with them
Two practical notes from the published care guidance. Shake the dirt out and let them dry before they go back in the bag, because a damp textile packed in a trunk for a month is exactly what it sounds like. And they are machine washable at 40 C - which is an unusually civilized instruction for a traction device.
Buy them sized to the tire on your car, not the car. The size is printed on the sidewall, and the same vehicle with different wheel packages takes different socks - the sidewall reader here walks through the numbers.
The verdict
AutoSock is the product that earns the category its credibility: real certification to a published standard, legal where chain laws apply, and an installation procedure that means you will actually use it. For the driver who needs traction a handful of times a winter and wants something they can fit in three minutes, it is the easiest recommendation on this site.
It is also the wrong product for the driver who needs to travel at speed, or who faces mixed bare and snowy pavement every day. Those are chain cases, and the published 30 mph limit is the line between them. The full head-to-head is here.
What to buy, given all that
AutoSock
AutoSock Textile Snow Sock
Roughly $80-$150 a pair
A textile cover that pulls over the tire. It fits vehicles with no clearance for chains, takes about a minute a wheel, and is the option that is accepted in some places where chains are not - which is worth checking before you buy either.
Skip it if: You need traction repeatedly over long distances. Textile wears fast on bare pavement.
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How this was ranked
Every site in this category says it tested twenty of these. We have not tested any, and we say so. What we did instead: built the candidate set from what Amazon actually stocks, compiled the published specifications from each manufacturer’s own pages, did the arithmetic on running cost and on what the thing prevents, and read owner reviews for failure patterns rather than star averages. Every number on this page has a link to where it was published, so you can check the work.
- Units we claim to have tested
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Frequently asked
Are AutoSocks legal where chains are required?
AutoSock publishes that it is approved in every US state with chain laws, and that it is certified to the European standard EN 16662-1 as well as complying with OENORM V5121 and the French Loi Montagne. Local signage and enforcement still apply, so check the state rules for the pass you are driving.
How fast can you drive with snow socks on?
AutoSock publishes a maximum of 50 km/h, which is 30 mph, for passenger cars. That is the device's operating limit rather than cautious advice, and it is the main reason to choose chains instead for sustained driving.
How long do AutoSocks last?
AutoSock publishes hundreds of kilometres when they are used on appropriate surfaces. Driving on bare pavement shortens that considerably, which is why the guidance is to remove them as soon as conditions allow.
Which wheels do snow socks go on?
The driving wheels - front on a front-wheel-drive car, rear on rear-wheel drive, and whatever the owner's manual specifies on all-wheel drive. That is the same rule that applies to chains.
Can you wash snow socks?
Yes. AutoSock publishes that they are machine washable at 40 C / 100 F, and recommends shaking out dirt and drying them properly before repacking.
Are snow socks better than chains?
For occasional use, they are far easier - published as a three-minute fit against a chain installation that usually means kneeling in slush. For frequent or faster driving, chains win on durability and speed rating. The 30 mph limit is the dividing line.