I believe these are new old stock. Came from my father who is in his 80's and has had them a long time! All seem to be in super shape, was kept in a plastic air tight container, so have maintained their stretch ability. However due to age, would not use them as they were intended, but as a collectible instead. Looks like material was made of cotton. The plastic container dates back to 1956-1959 era. I take pride in my pictures, and are a valuable extension of my description. Please take time to see the product fully. Buy with confidence! All items are packaged with great care and shipped next day, excluding any weekends and holidays. I will combine shipping whenever possible as long as the products can be safely packed together. Please remember to leave feedback, it helps to keep good sellers . International Buyers: We do not mark merchandise as a gift or below value due to it being against US and International Regulations. All custom fees and duties are the responsibility of the buyer. Seller is not responsible for any package held by Customs. If returns are accepted. Must be returned in the same condition as received and in same or similar packaging.