Meet the only silicone cup on the market without a plastic lid - now in a smaller, kid-friendly size. Our travel mugs are 100% plastic-free and cool to the touch with an embedded stainless steel ring that makes them strong enough to grip without collapsing. European-grade silicone with embedded stainless steel ring. BPA, BPS, phthalate, PVC, and lead free. 8 oz cup. One-of-a-kind uncollapsable design. Dishwasher and microwave safe.