ZANheadgear® 3-Panel Half Mask Neoprene Skull Face

How does this fasten? Or do you have to pull over the head???

My dad has a 24" neck and could barely close seirus' combo scarf. will this fit him? if not, what will??

How breathable are they? I realise that they have perforations, anyone wear it on a bike (with pedals) or exercising just wondering if I'll suffocate

can be used on summer?