When it comes to sports equipment, we love when athletes get creative.
Last season, for example, custom cleats took over the NFL and even though they weren't allowed to be worn during games, players did so anyway. They also showed them off in warmups, too.
NHL goalies have more freedom when it comes to creativity and fans usually see that creativity come to fruition on their masks.
Designs on masks have become so detailed and complex over the years and it's really cool to see.
Artists have also managed to make out of this world ideas come to life, and one example of that is Ben Bishop's glow in the dark mask.
Another example is Andrei Vasilevskiy's new mask that looks pretty common at first glance.
A closer look, though, reveals that in cold temperatures (or when cold water is poured on it), the subzero paint on the mask will darken.
This isn't the first time Sylvie Marsolais and Vasilevskiy have experimented with this technology.
Last season, Sylvie made this mask for the Lightning goalie:
The design they used subzero paint for is also significant because it honours the Lightning's 25th anniversary.
(H/T: Sylvie Marsolais)
