Size guide from here
https://www.underarmour.com.au/en-au/ua-sportsmask/1368010.h…
I believe they have all sizes available.
About the masks
Don't let the world hold you back from peak-performance with the Under Armour Sports Mask designed for athletes. The reusable mask offers protection with enhanced breathability allowing you to move without restriction. Its soft, lightweight and water-resistant outer features air pockets to keep the nose and mouth unobstructed as your workout ramps. The open-cell mid-layer allows air to pass freely whilst reducing the build-up of sweat and moisture for dry comfort as you hit the court, the gym or the pitch. UA's ISO-Chill fabric features an anti-microbial coating in the inner lining offering a cool-to-touch sensation as your core temperature soars. The mask fits flush to the face with specially designed side panels with stretchy ear loops providing the perfect fit. Experience comfort as you move with all-day comfort in the high-performance UA Sports Mask for those who don't let anything get in the way of greatness.
20 bucks for this ? More expensive than n95 mask lol.