Cycling glasses with monofocal lenses are designed to help improve vision while cycling. These glasses have lenses with a single power of vision correction, typically intended to correct nearsightedness or farsightedness.
Monofocal lenses can be made from different materials, including glass, polycarbonate, or plastic. Polycarbonate is a popular material for cycling glasses lenses because it is lightweight, durable, and impact-resistant.
When choosing a pair of cycling glasses with monofocal lenses, it is important to consider the shape of the lenses and their curvature to ensure they provide clear and sharp vision in all lighting conditions. Additionally, cycling glasses should have a comfortable and secure frame that fits well on the face and does not interfere with the helmet or other cycling accessories.

Here are some other important things to consider when purchasing cycling glasses with monofocal lenses:
- UV protection: Make sure the lenses of the cycling glasses offer protection from the harmful UV rays of the sun, as cycling can expose the eyes to long-term exposure to UV rays.
- Special treatments: Some cycling glasses lenses may have special treatments to improve vision or protect from the weather, such as anti-reflective, anti-fog, or hydrophobic treatments.
- Lens color: Cycling glasses lenses can come in different color shades, such as gray, green, brown, or pink, each offering a different level of contrast and weather protection. The choice of lens color will depend on personal preferences and the riding conditions in which the cycling glasses are used.
- Bridge width and adjustable nose pad: The bridge width of cycling glasses should be comfortable and not too tight, so as not to cause discomfort or pressure on the nose. The adjustable nose pad helps to adjust the glasses and increases their comfort.
- Non-slip rubber inserts: Some cycling glasses frames may have rubber or silicone inserts to improve grip and prevent slipping during cycling.

In general, when purchasing cycling glasses with monofocal lenses, it’s important to find a pair that offers good optical quality, a good fit, and adequate protection from external elements and UV rays.