In short
For the Italian winter obligation, what counts is the M+S marking and type approval: 4-season tyres with M+S are permitted, like winter tyres. The choice between the two depends on where you drive: in town and on flat roads an all-season tyre is a practical compromise; with frequent snow or mountain roads a dedicated winter tyre is more suitable.
What the law says
Where winter tyres or snow chains are required, type-approved tyres with the M+S marking (or MS, M-S, M&S) are permitted: including many 4-season tyres. The three-peak mountain with snowflake symbol (3PMSF) certifies a specific performance on snow, but Italian rules do not require it. The details, with sources, are in the guide on the obligation in Lombardy.
All-season or two sets: how to choose
| 4-season (M+S) | Summer + winter | |
|---|---|---|
| Seasonal changeover | Not needed | Two changes a year |
| Space | One set only | A second set to store |
| Ideal use | City and flat roads, little snow | Those who drive often on snow or in the mountains, or want the best in every season |
| Winter obligation law | Permitted if they carry M+S | Winter tyres permitted, summer ones to be replaced |
4-season tyres are a compromise between summer and winter tyres: always ask what the model they suggest actually does, and read the European label for wet grip, noise and fuel consumption.
Two sets without hassle
The real cost of two sets is where to keep the off-season set. If you have your tyres fitted with us, seasonal storage is free: the set stays washed and catalogued in your name, and at the next changeover it takes just a few minutes.
Frequently asked questions
Do 4-season tyres count as winter tyres?
Yes, if they carry the M+S marking (or MS, M-S, M&S) and are type-approved: for the Italian obligation that is what counts. The snowflake symbol (3PMSF) is not required.
What is the difference between M+S and the snowflake?
M+S (Mud and Snow) is a manufacturer's marking on the tread pattern; the three-peak mountain with snowflake symbol (3PMSF) certifies a minimum performance on snow obtained through a test.
Do I need chains if I have 4-season tyres?
If they have the M+S marking, as a rule no, where the obligation provides for winter tyres or chains: always check the ordinance and the road sign.
When does a double set of summer and winter tyres make sense?
When you often drive on snow or mountain roads, or want dedicated tyres in every season. With free storage with us, having two sets doesn't take up garage space.
Sources
Updated on October 5, 2026 by Pneumatici SuperStore, Via Enrico Cosenz 63/1, Milano.