Capacities range from about 16 ounces up to roughly 34 ounces. Common sizes shown include 16 oz, 17 oz, 24 oz, 26 oz, 32 oz, 33.8 oz, and 34 oz.
Listings show bottles made from plastic and stainless steel. Several insulated models specify 18/8 food‑grade stainless steel construction.
Common tops include screw-on lids with reusable straws, flip-top or locking spout covers, twist-off caps, and leakproof screw/twist closures designed for travel.
Product details call out leakproof lids, screw-on or twist-off caps, and locking spout covers or tight seals intended to reduce spills during travel.
Common labels include 'BPA-free' or 'BPA & BPS Free' for plastic parts, and many listings note 18/8 food‑grade or kitchen‑grade stainless steel construction.