In general, frames made of metal or alloys (mixture of metals) resist wear well.
Osmose Metal frames are very strong, light and corrosion resistant. They are hypoallergenic, which is important for people who are allergic to certain metals, such as nickel. They can be a good choice for older children. They are available in a wide variety of colours.
Metal frames have a very minimalist look and are usually much thinner and lighter than plastic eyeglass frames. They are also slightly softer, making them good options for sports people with an active lifestyle. Unlike plastic frames, metal frames offer the option of a semi-rigid frame, where the lenses are not mounted inside a metal frame, but simply attached to the temples. This is really great for people who don't want or can't wear contact lenses and prefer a super minimalist look.