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. 
Can you please explain the meanings
Sure. The black and white one is very typical in Palestine and is “traditional” for that area. The red and white one is what the PFLP wears - though I understand that red and white is also what is commonly worn in the gulf states, I’m not sure.
Cool, those I mostly got but I was wondering about the all black