LOKI ALL-N-1 face mask, black, offering 3-way use. Versatile and adaptable, it's perfect for chilly, windy days, wearing under a helmet, or protecting against the sun in the spring snow. - Model Name: LOKI ALL-N-1 - Color: Black - Size: One Size - Function: 3-way use as a mask, gaiter, and hat - Logo: LOKI embroidery It's not overly thick, so it seems suitable for use over a long period. Great for hiking, skiing, and from autumn to early spring. It's an appealing product, but there are many similar items available, so I'm listing it. Thank you for looking.