This all silicone 12oz cup is 100% European grade silicone with an embedded stainless steel ring. It won’t collapse when gripped. The all silicone straw top and straw inserts for a tight fit and all parts are dishwasher and microwave safe.
Silicone cup that holds it's shape, no collapsing mouth
Silicone top inserts for a tight fit
Can be boiled to sterilize
100% silicone and 100% stainless steel
Dishwasher and Microwave safe