TILUCK 40 oz Tumbler with Handle & Straw

What you get

A 40 oz double-wall vacuum-insulated tumbler in 18/8 stainless steel with two features the big-capacity crowd actually wants: a handle and a 100% leak-proof straw lid. Forty ounces is the all-day size — fill it once in the morning and you’re set through work, the gym, and the commute home. Despite the capacity, the base is tapered to fit a standard car cupholder.

The standout feature: a handle and a leak-proof straw at 40 oz

Most 40 oz tumblers make you choose — big capacity but a lid that seeps if it tips, or a good lid but no easy way to carry it. This one gives you both: a molded handle for one-finger carrying and a silicone straw lid rated 100% leak-proof, so it can ride sideways in a bag or bounce in a cupholder without wetting everything. The straw means all-day sipping without unscrewing anything.

Performance in the kitchen and on the road

The thermal work is the same double-wall vacuum principle as the smaller sizes: a sealed vacuum gap between two steel walls keeps drinks cold for up to 24 hours and hot for several, with no sweating on the outside. At 40 oz that means a full day of cold water or iced coffee from one fill. The electro-polished interior resists odor and staining, so switching from coffee to water doesn’t carry flavor over. The lid’s straw and the handle are the parts you interact with most, and both are built for daily abuse.

Living with it

Hand-wash the lid, gasket, and straw to keep the seal fresh — run a thin straw brush through the straw weekly so it never gets funky (see how to clean an insulated tumbler straw lid). The honest trade-off is simple physics: 40 oz of liquid is heavy, so if you want something lighter for a desk or a short outing, size down. It is not microwave safe.

How it fits the TILUCK line

This is the biggest, most travel-ready drinkware TILUCK makes. Want less weight and a do-everything middle size? The 20 oz tumbler is the commuter pick. Prefer a proper mug with a handle for a desk coffee? The 12 oz insulated mug is smaller and simpler. To see how the 40 oz stacks up against Stanley, Simple Modern, and Owala, read the best 40 oz tumbler with handle roundup or go head-to-head — TILUCK vs Stanley and TILUCK vs Simple Modern — or browse the tumblers hub.

Verdict

If you want one tumbler that carries a full day of cold water, has a handle, and won’t leak in a bag, the 40 oz is the size to get — and it undercuts the premium names on price. Size down to the 20 oz if 40 oz feels heavy, or the 12 oz mug if you mainly want a desk coffee with a handle.