This stainless steel tumbler features a colorful ergonomic silicone grip on the exterior and a matching plastic liner inside. The black snap-on lid has a matching colored, spill-resistant slide-top. CA Prop 65 compliant, BPA free. • Comfortable Grip: Ergonomic silicone exterior. • Coordinated Design: Matching interior liner and lid color. • Regulatory Compliance: CA Prop 65 compliant, BPA free.