Straws or Cap Buttons? bkr Accessory Myths Busted
By Reusable Glass Water Bottles with Silicone Sleeves | bkr | Published: 2026-11-04
Category: 팁 및 관리
Think bottle straws and cap buttons are interchangeable? We separate PUFF Little Bottle Straws from SEA FOREST Cup Cap Buttons and clear up common bkr accessory myths.
Quick answer
They are not interchangeable: PUFF Little Bottle Straws are silicone drinking straws made for the bkr 250/500ml Straw Cap, while SEA FOREST Cup Cap Buttons are replacement silicone buttons for an insulated Cup Cap. Buy the one that matches the cap you actually own.
Why the mix-up happens
Both accessories are small, silicone, and sold in sets of three, so they look like variations of the same thing in photos. The difference is where they sit: a straw passes through the Straw Cap's clear silicone valve, while a button pops into the opening of an insulated Cup Cap. If you own a Cup Cap, straws won't give you a button, and if you own a Straw Cap, buttons won't give you a straw.
The exception: when a straw is the wrong purchase
If your bottle is capped with an insulated Cup Cap and you want splash-resistant travel, the accessory you need is a button, not a straw. The Sea Forest set gives you one button each in Everly, Ocean, and River, so you can color-match or keep a spare. Conversely, if you already have a Straw Cap and simply lost a straw, buying buttons won't solve it.
What neither accessory does
Neither product turns a non-straw cap into a straw cap or a non-insulated cap into an insulated one. The catalog does not list bottle compatibility beyond the Straw Cap and Cup Cap references, so check your cap model before ordering rather than assuming a universal fit.
Verdicts on common bkr accessory myths
- Myth: straws and cap buttons are interchangeable: False. A straw goes through the Straw Cap's silicone valve; a button pops into the Cup Cap opening. They solve different problems and are not swap-in parts. Match the accessory to the cap you already own before buying.
- Myth: one set of straws fits every bkr: Only partly true. The 500ml straws are made for 500ml bkrs and the 250/500ml Straw Cap; the catalog lists separate 250ml and 1L sizes, so size matters. Check your bottle size against the straw size, not just the brand.
- Myth: you need extra buttons only if yours breaks: Not quite. The Sea Forest set gives you three colors (Everly, Ocean, River) for splash-resistant travel, so spares and color changes are both valid reasons to buy. Treat buttons as a wear-and-color item, not just an emergency replacement.
- Myth: a straw cap means you can't carry balm: False. The DOE KISS CASE is a separate silicone holder for balm when your cap is occupied by a straw. If you use a straw cap daily, a separate balm holder keeps the cap free.
Product facts
- PUFF LITTLE BOTTLE STRAWS 500ML (16OZ) SET OF THREE: PUFF Little Bottle Straws are a set of three silicone straws sized for 500ml bkrs and designed to fit the bkr 250/500ml Straw Cap. They only work as drinking straws once you have the matching Straw Cap, so the cap is the real compatibility gate.
PUFF LITTLE BOTTLE STRAWS 500ML (16OZ) SET OF THREE - SEA FOREST CUP CAP BUTTONS (SET OF THREE): SEA FOREST Cup Cap Buttons are BPA-free, phthalate-free, food-grade silicone buttons that pop into the opening of an insulated Cup Cap for splash-resistant travel. They are a replacement or spare part for a Cup Cap, not a straw and not a cap on their own.
SEA FOREST CUP CAP BUTTONS (SET OF THREE) - DOE KISS CASE: The DOE KISS CASE is a silicone compact holder made from the same food-grade, dishwasher-safe silicone as other bkr accessories. If your cap is busy holding a straw, this gives balm a separate place to live instead of competing for the cap.
