Under Armour Adult Sports Mask
https://www.amazon.com/Under-Armour-...4579062&sr=8-5
I tried several different masks, the Under Armour Adult Sports Mask was the best for basketball officiating.
These Under Armour Adult Sports Masks are sized. Please note the size chart on the Amazon site.
While I used mine with an Fox 40 Electronic Whistle (with a powerful nine volt battery), other local guys had plenty of room for a regular Fox 40 whistle under their Under Armour Adult Sports Masks.
https://www.amazon.com/Fox-40-Unisex...A%3D%3D&sr=1-6
Note: Connecticut officials were not allowed to use gaiters of any type, so check your local listings.
I highly recommend the Under Armour Adult Sports Mask. In fact, it's my every day mask.
I, and all members of my immediate family, do not work for Under Armour, nor do we work for any of their advertisers.
Note: I do have some fogging problems when wearing my eyeglasses with the Under Armour Adult Sports Mask, luckily, I don't wear my eyeglasses while officiating basketball.