Very light and folds up very small . At this price you can afford to by a few . I tuck them in glove boxes , in my bikes kit etc . You always seem to have a hood on your jacket or a knit hat but they are not always enough . If you put this on your good as gold in any weather . They do smell funky when new . That goes away but wash in cold water by hand and let air dry . Do not use bleach a little scented soap is great but rinse well and dry before storing . I saw where one person thought they didn't vent well and cut out a mouth hole . I have not had that problem yet with the nose hole and other vent it seems to be fine . However it would be easy to do . You would get fraying and allot less life span I imagine . Otherwise these should last for years . These cover the neck well and my cheeks up to my eyes . They even cover the ears . With a thick knit hat or ear band your set for very cold weather . Works perfect with a skull cap and bike helmet . I feel l am ready for anything with this and my Rando hat by Oregon research and it is such a light set up and comfortable .Very pleased came back and ordered another in a different color as a runny nose will keep one in the wash . A must have in Winter around here . I do not know how I lived without this all these years . It weighs about as much as a hankerchief but is very warm and it easily folds up to fit in a breast shirt or inner jacket pocket so you can carry it at all times during the winter  for when you need it . Great glove box stuffer for the winter emergency kit. At under $4 a deal and my first one came in about two weeks much better then the 8 weeks forcasted . Customs can sometimes hold things up but it is worth the wait . Because problems can happen it is good to split orders up over time just in case . This is a very neat product which I had never seen before . I am very pleased as Amazon opens up the world to me while saving gas and time .Note Jan 7th 2014 . The weather here is below zero now . This is very useful but I am now having fog in my glasses . Simple fix fold over and cut small mouth hold for breath or pull down from cheek bone away from glasses . Can be a little messy with a runny nose . However for $2 roughly it is definitely worth trying and keeping in pockets within ones Winter Coats and jackets as well as the car emergency kit or glove box .