Capacities range from 24 ounces up to 64 ounces; common sizes shown include 24 oz, 32 oz, 40 oz, 62 oz and 64 oz.
Listings show stainless steel (including 18/8 stainless steel), plastic, and some bottles that include silicone components.
Many listings emphasize leakproof designs and locking lids; at least one description explicitly claims a locking lid that is 100% leak-proof.
Care instructions vary: some listings state dishwasher-safe (often top‑rack only), others specify hand‑wash only, and several warn not to microwave the bottles.
Reviewers commonly praise strong thermal performance and reliable sealing/leak resistance, and frequently note convenient handles and lid features that make carrying and drinking easier.