silicone collapsible cup 1.100% food grade silicone; 2. flexible,non-stick,durable, 3. impermeable,reuseable; Silicone collapsible cup 1. material :made ... of 100% food grade silicone with high quality , meeting ... ;8. logo : silkscreened ,debossed ,embossed ;9. collapsible shape, convenient and ideal to use for drinking(when ...