Loyal customer – My mother and I have several Java Soks. We have them in all 3 sizes and keep them in our cars and in our purses. We drink a good bit of Starbucks and keeping our drinks cool in the summer is a must. The Java Sok is the best!! It doesn’t let sweat get on anything and keeps our drinks cold for longer. We have given them to friends, family, and co-workers for Christmas, birthdays, Valentines Day, other holidays, and well just because we love them too much not to share them with everyone. We will continue to purchase them and use them for our drinks. The company is awesome to work with and they ship so quickly.