10 Best Giro Bicycle Helmets 2025 in the United States

The Giro Fixture MIPS Adult Mountain Cycling Helmet in Matte Trim Blue offers a solid choice for adult cyclists, particularly those involved in mountain biking. One of its primary strengths is the market-leading protection, thanks to Giro's advanced testing lab and the integrated Multi-Directional Impact Protection System (MIPS), which helps redirect energy during a crash, enhancing safety significantly.

The helmet's ventilation system is another standout feature with 18 wind tunnel vents and internal channeling, ensuring that you stay cool during intense rides. Additionally, the in-molding construction contributes to its durability and ruggedness, making it suitable for challenging terrains. The universal fit sizing is convenient, allowing users to get a comfortable fit right out of the box without much hassle.

The adjustable wide sizing range accommodates various head sizes from 54 to 61 cm, which is a practical feature for adults of different ages. However, while the helmet is relatively lightweight at 1 pound, some users might prefer an even lighter option for extended wear. The helmet is discontinued by the manufacturer, which might limit availability or support in the future. In summary, the Giro Fixture MIPS helmet offers reliable protection, excellent ventilation, and a comfortable fit, making it a great choice for mountain cyclists, despite potential limitations in weight and future product support.

The Giro Tremor MIPS Unisex Youth Cycling Helmet is designed with a focus on youth cyclists. It features an integrated MIPS Protection System that adds an extra layer of safety against certain impacts, which is a significant advantage for young riders. The helmet offers a Universal Fit Sizing, making it easy to get a good fit right out of the box, which is convenient for both parents and kids.

The 18 vents provide excellent ventilation, helping to keep the rider cool during long rides. Weighing only 1.5 pounds, it is lightweight, enhancing comfort during use without compromising on durability due to its in-mold construction that fuses the polycarbonate outer shell with the interior liner. On the downside, since it's a discontinued model, finding replacements or additional parts could be challenging.

With its matte black color and sleek design, it appeals to both boys and girls, making it a versatile choice. Because it meets high safety standards, it is a reliable option for youth cyclists.