This tumbler is a 24oz stainless steel tumbler with a twist-off lid and attached flexible straw. It features double-wall construction to keep drinks cold for 24 hours and is vacuum-sealed to prevent condensation. It is also PVC, BPA, latex, and phthalate-free. Price drops from $23.30 to just $12.98. Shipping is free over $35 or adds $6.99.