Deke Home 2 Pack Silicone Collapsible Travel Water Cup,Portable Camping Cup with Lids Food Grade Mugs Set for Outdoor Drinking. Collapsible Travel Water Cup,Safe & Durable:Collapsible travel cups are made of food grade silicone,doesn't absorb flavors or smells,environmentally friendly and reusable.They all come with lids that go on tightly, keeping..