Is the SM3 DOT and ECE certified?

Yes. Alpinestars lists both DOT and ECE 22.06 certification for the SM3, so it is legal for US road use and European race rules.

How much does the SM3 weigh?

A medium weighs about 1310 g in ECE trim and 1430 g in DOT trim, according to Alpinestars.

No. It uses Alpinestars' own patented rotational-impact protection instead of MIPS.

What sizes does it come in?

It comes in a range of adult sizes from Small up, and Alpinestars also lists it for kids. Each shell size has its own EPS liner.

Is $229.95 a good price?

That is the best new price found as of November 6, 2026, at Walmart, with three stores selling it new. Compare against those stores before buying.

Can I use it on the street?

It is an off-road helmet with a peak and no face shield, so you need goggles. It is DOT certified, so street use is legal, but it is not designed for highway touring.

Where is the SM3 Solid Helmet cheapest?

At Walmart, for $229.95, as of our latest check.

Where can I buy the SM3 Solid Helmet?

3 stores we checked sell it, including Walmart, Amazon, Alpinestars.

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Alpinestars

SM3 Solid Helmet

Best price now

$229.95at WalmartObserved at 12:11 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Alpinestars

SM3 Solid Helmet

Best price now

$229.95at WalmartObserved at 12:11 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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It checks today's price at every store, compares the alternatives and answers in about a minute.

Our take on the SM3 Solid Helmet

The Alpinestars SM3 is a motocross and off-road helmet with both DOT and ECE 22.06 certification, so it is legal for road and race use. It uses a thermo-injected shell, multi-density EPS sized to each shell, 10 intake and 7 exhaust vents, and a patented rotational-impact liner plus a visor release system. A medium weighs about 1310 g in ECE trim and 1430 g in DOT trim. The best new price is $229.95 at Walmart as of November 6, 2026, with three stores selling it new.

Best forMotocross and off-road ridersRiders who want DOT and ECE certification in one helmetTeen and smaller adult riders needing a Small shellBuyers who want rotational-impact protection at a mid price

Pros

DOT and ECE certified, so it works for trail and track
Rotational-impact liner is rare at this price
Strong ventilation: 10 inlets and 7 exhaust ports
Visor release system reduces neck forces in a crash
Light for a certified off-road helmet at about 1310 g in ECE trim

Cons

DOT version is roughly 120 g heavier than the ECE version
No MIPS branding; the rotational liner is Alpinestars' own design
Off-road only: no visor or face shield for street use
Small sizing runs tight for some riders; try before buying

SM3 Solid Helmet prices at every store

WalmartNew
In stockSold by 3 Seventeen Moto
$229.95Free shippingObserved at 12:11 PM
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AlpinestarsNew
In stockReturn policy
$229.95Observed at 12:11 PM
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AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$229.95Free shippingObserved at 12:11 PM
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SM3 Solid Helmet price history

Lowest price we've seen: $229.95 on Nov 6 at Walmart. Tracked across 2 stores since Nov 6.

What reviewers say

4.8 / 5315 ratings

Rated 4.8 out of 5 from 315 ratings, owners mostly praise the fit, light weight and ventilation. Complaints center on sizing and wind noise at speed.

What people mention

FitMixedMany owners find the fit comfortable, but some say it runs small and needs a size up.
WeightPraisedRiders call it light for a certified off-road helmet, especially the ECE version.
VentilationPraisedThe many intake and exhaust ports keep riders cool in hot weather.
NoiseCriticisedSome riders report wind noise at higher speeds.
BuildPraisedOwners describe the shell and liner as solid and well finished.

From Alpinestars

Thermo-injected shell with a special polymer blend and varying thickness for impact protection and low weight
Medium size weighs 1310g (ECE) and 1430g (DOT)
10 inlets and seven exhaust ports for maximized ventilation and heat transfer
Multi-density EPS inner shell with a unique dimension for each helmet size
Patented rotational impact protection reduces rotational acceleration to the head
Patented visor release system reduces forces on the rider's neck during impact

Sizes: XS, S, M, L, XL, 2XL
Materials: Thermo-injected shell; multi-density EPS inner shell; 6 EPS/EPP inner parts with 5 densities; comfort liner made with recycled materials; soft textile chin stra
Fit: Fit can be tailored with crown and cheek pads available as genuine spare parts in different thicknesses
Returns: Free 30 day exchanges and returns
Shipping: Free Shipping On Orders +

About the SM3 Solid Helmet

Discover SM3 Solid Helmet ECE06/DOT on Alpinestars. Premium motocross protection with ECE06 and DOT certification for uncompromising safety. Built with premium construction and racing heritage.

Specifications

Style: Off-road
Department: Men's / Unisex
DOT Certified: Yes
ECE Certified: Yes
For Kids: Yes
Size: Small

Questions and answers

Is the SM3 DOT and ECE certified?: Yes. Alpinestars lists both DOT and ECE 22.06 certification for the SM3, so it is legal for US road use and European race rules.
How much does the SM3 weigh?: A medium weighs about 1310 g in ECE trim and 1430 g in DOT trim, according to Alpinestars.
Does it have MIPS?: No. It uses Alpinestars' own patented rotational-impact protection instead of MIPS.
What sizes does it come in?: It comes in a range of adult sizes from Small up, and Alpinestars also lists it for kids. Each shell size has its own EPS liner.
Is $229.95 a good price?: That is the best new price found as of November 6, 2026, at Walmart, with three stores selling it new. Compare against those stores before buying.
Can I use it on the street?: It is an off-road helmet with a peak and no face shield, so you need goggles. It is DOT certified, so street use is legal, but it is not designed for highway touring.
Where is the SM3 Solid Helmet cheapest?: At Walmart, for $229.95, as of our latest check.
What do buyers say about the SM3 Solid Helmet?: Rated 4.8 out of 5 from 315 ratings.
Where can I buy the SM3 Solid Helmet?: 3 stores we checked sell it, including Walmart, Amazon, Alpinestars.