Aspex Eyewear from Montreal is using Trilaston, a patented memory metal, in its Easytwist line at opticians.

These are more flexible than traditional nickel-titanium frames and can be twisted or bent in any direction, reverting back to its original form within a second after.

They are quite affordable and make good gifts for kids who are much rougher than adults when it comes to handling glasses.

Frame shapes range from traditional to trendy geometric styles.

Trilaston, which has a momocrystalline structure giving it excellent resistance to shock, corrosion and extreme temperature variation, according to Aspex, is now also used exclusively by the company in this EasyTwist collection.