10 Best Full Face Mtb Helmet 2020 2026 in the United States

The Smith Mainline helmet is designed for serious downhill and enduro mountain bikers who want strong protection without sacrificing comfort. It meets multiple safety standards, including downhill certification and MIPS technology, which helps reduce rotational impacts during crashes. Its Koroyd construction provides lightweight yet energy-absorbing protection, making it safer and less bulky compared to some other full-face helmets.

Ventilation is a highlight, with 21 fixed vents that keep air flowing to prevent overheating and reduce fogging of goggles or glasses. The helmet weighs about 770 grams, which is on the lighter side for full-face models, helping riders avoid neck fatigue on long rides. The adjustable visor offers three positions, letting you fine-tune glare protection or accommodate goggles. Comfort is addressed with multiple washable padding sets and liners, including cheek pads and neck rolls, so you can customize the fit to your head shape and preference. The chin strap uses a lightweight, low-profile buckle system that’s secure yet easy to operate.

One consideration is that its large size may not suit all riders, and while ventilation is excellent, those in extremely hot climates might still feel some heat buildup during intense rides. It is also a bit heavier than typical open-face helmets due to the full-face design, but that is expected for the added safety. The Smith Mainline serves as an excellent choice for mountain bikers needing a durable, well-ventilated helmet that prioritizes both protection and comfort during aggressive trail riding.

The Fox Racing Proframe RS helmet is a solid choice for serious mountain bikers who want strong protection combined with comfort. Its Mips Integra Split system adds advanced impact protection by combining two types of foam liners to reduce rotational forces during crashes, which is a big plus for safety-conscious riders. The fit is excellent thanks to the BOA system, allowing easy, secure adjustment, while the Fidlock magnetic buckle simplifies putting the helmet on and taking it off. Ventilation is well thought out—the helmet has increased airflow and less surface contact, helping keep you cool on long rides. The Ionic+ liner and cheek pads are designed to manage odor and sweat, making it more comfortable over time.

The visor adjusts in three positions and fits with goggles, plus there's a removable GoPro mount under the visor, which is a nice bonus for riders wanting to capture footage. The helmet weighs about 3.3 pounds, which might feel a bit heavy compared to some competitors, especially for riders prioritizing lightweight gear. Also, while ventilation is better than older models, it may still feel warm on very hot days due to the full-face design. The helmet comes in a large size only, so fit options are limited unless other sizes are available separately.

This helmet offers a reliable, comfortable full-face option with advanced safety features and practical extras, making it suitable for adult riders, although those sensitive to weight may want to consider that factor.

The iXS Trigger FF MIPS helmet is a solid choice for full-face mountain biking, especially for riders who prioritize safety and comfort. Its standout feature is the MIPS system, which adds an extra layer of protection by reducing rotational forces during impacts. The fit is highly adjustable thanks to the ErgoFit Ultra system, allowing you to fine-tune both the size and tilt for a snug, personalized feel. Ventilation is well thought out, with numerous strategically placed vents to keep air flowing and help prevent overheating on long rides.

At around 595 grams, it's notably light for a full-face helmet, enhancing all-day comfort without feeling bulky. The double inmould shell design improves durability and impact absorption, while the 2-level adjustable visor offers flexibility to accommodate goggles comfortably. The padding and liner provide comfortable and breathable support, which enhances the fit and feel. The chin strap and buckle system are secure and user-friendly.

One minor consideration is that this model comes in a small size range (54-58cm), so it may not fit larger heads. Additionally, the helmet is targeted toward adult riders and is well suited for all-mountain and trail disciplines rather than aggressive downhill racing. This helmet effectively balances lightweight design, safety technology, and ventilation, making it a great pick for riders looking for reliable full-face protection with comfort for long rides.