https://kufiya.org/
There's an auto-queue and at the time of writing this there's like 3600 people in it (and an estimated like hour wait), so no guarantee of anything being in stock by the time you read this; but I figured I'd post this in case anyone was waiting on them to restock. 
sometimes I see a guy wearing this one on the bus
he kind of looks a little scared all the time
it's cool he does it anyway
i smile at him but i don't know if he can see because he's pretty busy being nervous
The next time you see him, a off-hand "i like the keffiyeh/scarf you've got on" would show a lot of solidarity! It usually only takes one random compliment from a stranger to help people get past that initial 'I look like a dweeb' nervousness with any sort of attire/accessory.