TR90 Glasses Frames

TR90 is a high-performance thermoplastic polyamide originally developed in Switzerland for applications requiring lightweight construction, flexibility under stress, and long-term shape retention.

In eyewear, these qualities translate into frames that are noticeably lighter than standard plastic. Flexible enough to bend and recover under pressure, and stable enough to maintain their shape through extended daily wear.

TR90 frames have a defined flex-and-return quality that distinguishes them from both rigid acetate and standard plastic. The material can be bent substantially and will return to its original shape without retaining the deformation. This makes TR90 frames particularly resistant to the kind of gradual misalignment that affects less flexible materials over time.

TR90 is one of the most practical materials for active wearers, including children. Its resistance to impact, ability to flex without snapping and light weight make it a tough choice for anyone whose glasses are subject to physical stress beyond typical office or everyday use. The material is also hypoallergenic, which is a relevant consideration for younger wearers with sensitive skin.

Yes. All Direct Sight TR90 frames are available fully glazed with prescription lenses, including single vision, varifocal, and reading options. TR90’s full-rim construction is compatible with a wide range of lens types. The lightweight construction helps keep the overall weight of glazed glasses low, in particular when paired with high-index lenses.

Both TR90 and titanium are among the lightest frame materials available in prescription eyewear. TR90 is a thermoplastic and has the advantage of flexibility, making it more resistant to physical impact. Titanium, as a metal, offers greater long-term shape precision and a more refined aesthetic.

TR90 tends to suit a more active or casual wearing context. While titanium is the preferred choice for those prioritising longevity, minimal profile, and premium finish.