iced coffee cup with straw glass

Cup bodies are most commonly stainless steel or glass. Other components (for example, lids and straws) vary by model and may use different materials.

Many straw tumblers advertise leakproof or locking lids, push‑button or twist‑off closures, and multi‑mode spouts. Product notes and reviews highlight locking lids and leak‑proof designs, although some listings and user feedback report occasional lid or straw leaks.

Common capacities range from about 18 ounces up to 40 ounces. Examples found include 18 oz, 20 fl oz, 21 oz, 24 oz, 30 fl oz, and 40 oz.

Cold retention varies by model. Some listings advertise 24+ hours of ice retention, and at least one model specifies up to 40 hours.

Stainless‑steel straw tumblers are typically vacuum‑ or double‑walled and emphasize insulation and long cold retention. Glass straw cups are generally single‑material glass pieces, often with decorative textures or wooden lids and specific care notes (for example, “Do Not Microwave”).