This tumbler is crafted from 304 recycled stainless steel with a sleek matte finish, with double-wall vacuum insulation keeping drinks hot or cold for up to 12 hours. A carrying handle, straw lid, and screw-on bottom storage compartment for small essentials round out the design. BPA-free, FDA compliant. • Recycled Material: 304 recycled stainless steel construction. • Practical Storage: Screw-on bottom compartment for small essentials. • Regulatory Compliance: BPA-free, FDA compliant.