Ziliny 50 Pack 16oz Clear Plastic Cups with Strawless Sip Lids Disposable Iced Coffee Cups Pet Crystal Round Bottom Tumblers for Iced Coffee, Cold Drinks, Smoothie, Drink Shops and Party Catering

Have only used a couple of these so far, but they didn’t seem to be very leak proof and the stopper didn’t want to stay seated off to the side. I plugged the sipping hole to give my drink a shake instead of stirring, and while I was nervous about it leaking, I kept my finger over the stopper to keep pressure applied and gave a couple light shakes over the sink where there was some leaks. Then I tried sticking it in the spot off to the side so I could get a drink and it didn’t want to stay put very well.

The strawless sip-lid design is excellent: the flip-top plug seals surprisingly well (basically leak-proof when closed), yet it pops open and snaps shut with one hand, which is perfect for people on the go. No more fumbling with separate straws or dealing with lids that pop off at the worst moment. The 16 oz PET plastic is indeed the sweet spot – thick enough that the cup doesn’t flex or crush easily (you can squeeze it pretty hard without it collapsing), but still crystal-clear so drinks look vibrant. They’re noticeably sturdier than the cheap gas-station cups while still being light. And yes, the slightly tapered round-bottom shape slides perfectly into virtually every car cup holder I’ve tried. Great for iced coffee runs, smoothie shops, parties, or just keeping a stack at home so you’re never stuck using flimsy cups when friends come over. For the price (especially in a 50-pack), the quality-to-cost ratio is honestly hard to beat. Solid 5/5 from me too – these have become my default disposable cup whenever I need something reliable that doesn’t feel cheap. Highly recommend!

These cups are fantastic for your on-the-go cuppa anything. They are strong and not flimsy at all, so you can rest assured that your hot beverage won’t melt and collapse the cup. I personally use to-go cups more for cold beverages, and these are extremely versatile and will work for anything. The lids snap on right away, and the sipper portion has an additional cover which also snaps on with ease. These are very high-quality to-go cups.