Adult capri sun pouches. Plastic pouches with a plastic bag like closure. The bottom opens up just like a capri sun pouch. All come with a extra long straw. Perfect to make a mixed drink and put in the fridge or freezer (wine slushies anyone?) They’re great for places you cannot have glass such as beach, boat, pool, concert, etc. These can be reused for years if hand washed and set out to dry (I usually put mine on a wine bottle to dry fully internally).