The measured head circumference decides the size, not the S/M/L label · review
An adult mountain bike helmet in PVC, polycarbonate and EPS, with a large sun visor that moves upward and a one-handed dial.
Our conclusion A $29.99 helmet that names its shell materials — PVC, polycarbonate and EPS — and a large sun visor that lifts out of the way, with a one-handed dial. It publishes no size range, no vent count, no weight and no safety standard, which makes it the least documented helmet on this page on a shelf whose whole method is to fit by centimeters.
An adult mountain bike helmet with a shell in PVC and polycarbonate over an EPS foam liner, a single-hand dial retention system, and a reinforced large sun visor that “is easy to move upward to offer you broad sights”. $29.99.
“Material use the tough and durable PVC & PC, EPS foam which help absorb the impact and protect the head during crash.”
Three named materials in one bullet. PVC and polycarbonate for the shell, EPS for the energy-absorbing liner — which is the standard arrangement, and naming all three is more than the Giro (polycarbonate and EPS) or the Schwinn (“microshell”) manage, and about the same as the Favoto’s “high-density EPS and in-mold”.
What it does not say is whether the shell is in-molded — bonded to the foam in the mold — or a separate skin taped over it. That is the construction difference between the Favoto and BATFOX helmets here and the cheaper Schwinn microshell, and it decides edge durability.
“This reinforced large sun visor is designed perfectly to match this biking helmet — visor is easy to move upward to offer you broad sights.”
A different solution from everything else on this page. The Schwinn, OutdoorMaster and Favoto visors are removable; the BATFOX visor is fixed and large. This one pivots up out of the sightline and stays on the helmet.
For a rider who alternates between a climb in the sun and a fast descent on the drops, a visor that moves without being taken off and lost is genuinely useful — and it is the only one here that does it.
No head circumference range. None at all, in any bullet.
The introduction to this shelf is built on circumference: sizes are sold as letters and fitted by centimeters, “and the ranges behind those letters differ enough between makers that the same nominal size can be two centimeters apart”. Three helmets on this page publish ranges — Schwinn 58–62, BATFOX 54–63 in three bands, Favoto 58–60 — and this publishes none, not even a letter.
That makes it the one helmet in this group you cannot size before it arrives.
“The adoption of specialized aerodynamic and ventilation design allow air go through the helmet which help increase the speed and keep stay cool.”
Vent counts elsewhere on this page: 18, 20 or 21, 25, 26. Here, none. “Increase the speed” is an aerodynamic claim with no figure behind it, which on a vented mountain helmet is not a claim worth weighing.
Like the Giro and OutdoorMaster on this page. The Schwinn names the CPSC provision; the Favoto names CPSC, ASTM and CE; the BATFOX names ASTM F1447 by number.
Every helmet sold in the United States must comply with the CPSC bicycle standard. This listing does not say that it does, and a declared marking is the only thing a comparison page can report — nothing here assesses crash behavior, and the buying advice on this shelf stands: a helmet is a replace-after-impact item by its maker’s own instructions.
The shipping record says 320 g (11.3 oz) — the second lightest parcel on this page, and not a published helmet weight. The only self-published figure here is the Favoto’s 260 g (9.2 oz).
No head circumference, no size at all, no vent count, no weight, no safety standard, no in-mold statement, no MIPS. The fifth bullet is a satisfaction promise.
At $29.99 it is $4.40 more than the Schwinn, which publishes a size band and a standard — and $3 more than the Favoto, which publishes a band, a weight, a vent count and three markings.
Read on the day this page was built: $30 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-06. The live price is at the top of the page.
| Shell | PVC and polycarbonate |
|---|---|
| Liner | EPS foam |
| Visor | Large, reinforced, lifts upward rather than detaching |
| Fit | Single-hand dial retention |
| Use | Bicycle, road, skateboard, commuting |
| Price | $29.99 |
| Head circumference | NOT PUBLISHED |
| Size | Not stated at all |
| Vent count | Not published |
| Weight | Not published; 320 g (11.3 oz) on the shipping record |
| Safety standard | None named |
| In-mold construction | Not stated |
| Amazon reference | B07T213YFM |
| EAN | 0741376186737 |
The listing does not say — no centimeters, and not even a letter. That is the serious gap, because the whole method of this shelf is to fit by measured circumference rather than by size label; the buying advice is to measure just above the eyebrows and compare to the stated range. Three helmets on this page publish ranges and this publishes none. Ask the seller before ordering, or buy one that tells you.
It is different, and for some riders better. The Schwinn, OutdoorMaster and Favoto visors on this page come off — which means they also get left at home or lost. This one pivots up and stays attached, so a climb in the sun and a fast descent on the drops are one movement apart. The BATFOX visor on this page is large and fixed, with no stated way to move it at all.
The listing names none, which puts it with the Giro and OutdoorMaster on this page. Any helmet sold in the United States must comply with the CPSC bicycle helmet standard, but a comparison page can only report what a maker declares — and here nothing is declared. Three helmets on this page do: the Schwinn names the CPSC extended-head-coverage provision, the Favoto names CPSC, ASTM and CE, and the BATFOX names ASTM F1447 by number.
A rider who wants a visor that flips up, and will ask the seller for the size
Amazon reports what buyers took in the month before this page was last checked: at least 500.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for bike gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
56–59 cm (22 to 23.2 in) · height-adjustable cradle · Multi-Fit light
A touring helmet from an established German sports brand, with a height-adjustable retention cradle, insect mesh in the front vents and a high-mounted integrated light.
Best for: Longer rides where a cradle that adjusts in two axes makes the difference over several hours.
M 54–58, L 58–61, XL 61–63 cm (24 to 24.8 in) · CPSC, ASTM F1447, CE · 18 vents · big visor
A mountain bike helmet in three published size bands, with eighteen channelled vents, a polycarbonate shell fused to EPS and three declared markings.
Best for: A trail rider with a measured head between 54 and 63 cm (24.8 in) who wants the standard named
58–61 cm (22.8 to 24 in) · 6 LEDs, 3 modes · removable visor
A size L helmet for 58–61 cm (22.8 to 24 in) heads with six rear LEDs in three modes, a removable visor and a dial adjuster, supplied with the CR1620 cell already fitted.
Best for: Riders with a larger head who want lighting and a visor without moving up in price.
