Leatt mountain bike goggles with a fully open frame for maximum ventilation. RideViz 170° permanently anti-fog lens, minimal foam, and a 50mm MaxiVent strap. OTG compatible.

LEATT Velocity 4.0 MTB X-Flow Goggles — Maximum Ventilation and Bulletproof Protection for Mountain Biking

The LEATT Velocity 4.0 MTB X-Flow Goggle is available in timber brown clear 83 vlt . It blurs the lines between goggles and sunglasses: its fully open frame at the top and bottom provides the open-air feel characteristic of glasses, while offering the complete coverage of adult mountain bike goggles. Designed for rides in warm weather where airflow is essential, it's an ideal solution for demanding cyclists seeking thermal comfort without compromising safety.

Screen and optics

The RideViz MTB WideVision lens offers an exceptional 170° field of vision, ensuring optimal terrain awareness in all conditions. Its bulletproof construction has been validated according to ANSI Z87.1-2015 and the MIL-DTL-43511D military ballistic impact standard, providing high-level eye protection. The permanent anti-fog treatment maintains clear vision even during intense activity, while the scratch-resistant coating ensures the lens's durability. The timber brown clear color boasts a VLT of 83%, particularly well-suited to low-light conditions and wooded terrain. Additional Velocity lenses are available separately to adapt the goggles to all lighting conditions. The Velocity 4.0 X-Flow also complies with PPE (EU) Regulation 2016/425.

Headband and comfort

The 50mm MaxiVent anti-slip mesh headband is specially designed to avoid obstructing helmet vents, even when the helmet is fully covered. It reliably keeps the goggles in place on the most technical terrain. The dual-layer, sweat-wicking face foam is intentionally minimal to maintain a sunglasses-like feel while providing soft, breathable facial support. The streamlined frame design helps reduce overall weight and maximize breathability. OTG (Over The Glasses) compatibility allows the goggles to be worn comfortably over prescription glasses without discomfort or excessive pressure.

Aeration

The X-Flow design maximizes ventilation with a fully open upper and lower frame, eliminating any barriers to airflow. The open lower frame incorporates a self-draining system that facilitates the removal of dirt and moisture accumulated during your ride. Combined with the wide MaxiVent mesh headband, this design ensures continuous airflow through the helmet's vents, significantly reducing heat buildup and fogging during extended rides.

Headset compatibility

The 50mm MaxiVent mesh headband was developed to integrate seamlessly with mountain bike helmets equipped with vents, without ever obstructing them. The ML size fits most adult head shapes, and OTG compatibility further expands the range of users who can adopt this mask for everyday wear.

Product information

• Brand : Leatt
• Product Range : Mountain Bike Glasses & Masks
• Gender : Male - Unisex
• Sizes : M