I keep this cloth on hand all of the time. This is my Nacra foil bag I designed and had sewn. Closed cell foam in between sheets of the fabric drawn and cut to shape by me. Sewn by my sailmaker. This, another bag for my Taipan and other bits took her 1 and 1/2 hour. note the polymer suitcase handle. I bought a dozen for $2 each. Making a great beach pulling bridle using those.
Total cost for what you see under $20.