TRIANGLE 3/4 Motorcycle Helmet for Men & Women (Large) - Retro Open

In this review of the TRIANGLE 3/4 Motorcycle Helmet the bottom line is simple: this retro open face helmet is best for riders who want a vintage look without sacrificing basic DOT-rated protection. The reviewer found it a solid choice for cruiser and scooter use thanks to its DOT FMVSS-218 compliance, an ABS shell with EPS lining for impact protection, and a convenient sun visor system that adds real versatility on varying rides and in bright conditions.

Key Features

• DOT Certified: Meets DOT FMVSS-218 safety standards so it provides required regulatory protection for street riding.
• Durable Shell: High-quality ABS outer shell gives sturdy impact resistance while keeping the helmet relatively lightweight.
• EPS Lining: Internal EPS foam absorbs energy in a crash and pairs with the shell for reliable protection.
• Visor System: Built-in dark tinted dropdown visor offers 99% UV protection and an external snap-on area accepts other visors or shields.
• Comfort Liner: Soft, breathable interior fabric improves moisture wicking and makes longer rides more comfortable.
• Adjustable Fit: Available in five adult sizes with an adjustable chin strap to help secure the helmet for a proper fit.

Who It's For

The TRAINGLE 3/4 is aimed at adult riders of cruisers, scooters, mopeds and ATVs who prefer a classic open face style with modern convenience such as a retractable sun visor. It suits riders who value a retro aesthetic but still want certified protection and usable ventilation for daily or weekend riding.

Riders who need full-face coverage for high-speed sport riding or aggressive off-road use should look elsewhere, as the open half-face design prioritizes visibility and style over full-face containment. Also, those between sizes should measure carefully because several customers reported the sizing runs small.

Pros & Cons

Pros

• Good build quality with a sturdy ABS shell and comfortable breathable lining praised by owners.
• Visor options add flexibility for sunny or mixed weather and the internal dropdown visor blocks most UV light.
• Classic retro design pairs well with vintage bikes and riding gear while remaining functional for daily use.
• Available in multiple adult sizes so most riders can find a close fit.

Cons

• Sizing runs small for some customers, so careful head measurement is necessary before ordering.
• Mixed feedback about visor security suggests double-checking the visor and snap fittings before long rides.

Specifications

Certification	DOT FMVSS-218
Shell Material	High-quality ABS
Impact Liner	EPS foam
Visor	Dark tinted dropdown internal visor, 99% UV protection
Interior	Soft breathable fabric lining with moisture absorption
Sizes	S, M, L, XL, XXL
Style	Retro open face / half face

Our Verdict

The TRIANGLE 3/4 helmet is a well-rounded pick for vintage-style riders who need DOT-compliant protection and practical features like a retractable sun visor and breathable lining. It represents good value for cruiser and scooter riders, provided you select the correct size and check visor fittings before regular use.

Frequently Asked Questions

Is this helmet DOT certified?
Yes, it meets DOT FMVSS-218 safety standards.

Does the visor block UV?
The internal dark tinted dropdown visor provides about 99% UV protection.

How does the helmet fit?
Sizes run small for some customers, so measure head circumference and consult the size chart for the best fit.