Eytan 9Pcs Outdoor & Versatile Headband Seamless Bandana Tube Neckwarmer Scarf Wrap Face Mask Multifunction Headwear - (New Series-1)

Bought them originally to use as a facemask while riding my Eskate but find them way more useful for a lot of other things as well.

Inexpensive. Easy to breathe in but loses color after being washed once