Kynup Replacement Straw Compatible with Stanley 40 oz Tumbler for Stanely Cup, 6Pack Reusable Straw Tritan Material with Cleaning Brush, Silicon Cute Cover Cap

The straw fits in the variety of Yeti-type lids on the market (2 types shown here) only the small center hole type will be leak proof. I have used 36 oz. stainless Yeti-style cups for years for the durability and long-lasting temperature control along with random silicone or steel straws. I really like these straws, less work for my lips than a smaller diameter, which everyone should appreciate since sucking on straws long term causes all those awful vertical wrinkles as we age but this one will not, its design doesn't require that strong muscle action from your lips! I absolutely love the tight-fitting straw covers for hygienic purposes and is the main reason I decided to go with the straws. Sure, they are tall but I quickly became a fan since "where's my water"? is said far less now that I can spot the pretty topper from a distance now, lol. I am so glad they are BPA free, too! I am not yet on board with the Stanley cup craze, perhaps when the affordable imitators hit the market, but I love the straw design and they blend beautifully with any reuseable water bottle that you prefer.

These are great. They keep straws sanitary. No bugs can land on them and they help with spills. Great item.

Good quality of straws and caps. Not thin straws at all. Those tiny caps sit well on the straw and are very adorable. I handwash them. It has been few weeks of frequent used and those adorable pastel color are still intact.

Great quality

These were super cute. Leak resistant and super cheap.

My favorites

Buena Altura,fácil de limpiar

these were adorable and I would've loved them, but they were too big for my cup.