swirly straw tumbler

According to the available product details, the tumblers most commonly come in 30-ounce and 40-ounce capacities.

Product details show double-wall vacuum insulation on several models, and at least one listing specifies triple-wall insulation.

The product details list stainless steel construction, including some listings that specify 90% recycled 18/8 stainless steel.

Most listings state the tumblers are dishwasher-safe; one listing specifically notes dishwasher-safe on the top rack.

Several listings note compatibility with most cup holders and include comfort or ergonomic carry handles to make transport easier.

Available details mention comfort-grip or ergonomic handles for carrying, and some listings include a rubber base for added stability.