How to Match a Kiss Cap to Your Big or Demi Bottle
By Reusable Glass Water Bottles with Silicone Sleeves | bkr | Published: 2026-11-01
Category: How-to Guides
Learn how to choose and use the Big/Demi Kiss Cap on bkr Big (1L/32oz) and Demi (650mL/22oz) bottles, including fit checks, balm attachment, and common mistakes.
Quick answer
The Big/Demi Kiss Cap fits both bkr Big bottles (1L/32oz) and Demi bottles (650mL/22oz), so matching it to your bottle is mainly about confirming the bottle size and deciding whether you want the balm snap-on feature. If you are replacing a lost cap, check that your bottle is one of those two sizes before ordering.
Why the cap size check matters before you buy
bkr caps are interchangeable across compatible bottles, but the Big/Demi Kiss Cap is specifically designed for Big and Demi sizes. A cap that does not match your bottle size may not seal or stay secure, which defeats the purpose of a replacement. Before you order, confirm whether your bottle is a Big (1L/32oz) or Demi (650mL/22oz). If your bottle is a different size, this cap is not the right match.
What the Kiss Cap adds beyond a standard cap
The Kiss Cap has a patented design that lets the bkr Paris Water Balm snap on and off the cap. That means you can carry balm with your bottle instead of digging through a bag. If you do not use the balm, the cap still works as a regular cap, but you are paying for a feature you may not need. The balm is not included, so factor that into your decision if you want the full setup.
When a different cap makes more sense
If you only need a simple replacement cap and never plan to use the balm, a standard bkr cap may be a more straightforward choice. Also, if you are unsure of your bottle size, measure the bottle or check the base before ordering. The Kiss Cap is not designed for bkr bottles outside the Big and Demi sizes, so do not assume it will fit a smaller or larger model.
Steps to match and use your Kiss Cap
- Confirm your bottle size: Check the bottom of your bkr bottle or its original packaging to see if it is a Big (1L/32oz) or Demi (650mL/22oz). If it is neither, the Big/Demi Kiss Cap is not the right fit. Do not guess by look alone; a quick check prevents ordering the wrong cap.
- Decide if you want the balm feature: The Kiss Cap is designed to hold the bkr Paris Water Balm, which snaps on and off. If you already use the balm or plan to, this cap keeps it handy. If not, consider whether a standard cap would be simpler. The balm is not included, so factor that into your decision.
- Attach the cap to your bottle: Screw the Kiss Cap onto your Big or Demi bottle until it is snug. Do not overtighten, as that can make it hard to remove later. A snug fit is enough; check for leaks by turning the bottle upside down over a sink.
- Snap the balm on and off: If you have the balm, align it with the cap's connection point and press until it snaps. To remove, pull gently. Practice once so you know how much force is needed. If the balm does not snap easily, check that it is aligned correctly; forcing it can damage the connection.
- Check for a secure seal: After filling your bottle, close the cap and turn it upside down for a few seconds. If you see leaks, remove the cap, check the threads for debris, and reattach. A leaking cap may be cross-threaded; unscrew completely and start again.
Product facts
- BIG/DEMI BOTTLE KISS CAP: The Big/Demi Kiss Cap fits Big bottles (1L/32oz) and Demi bottles (650mL/22oz). This tells you directly whether your bottle is compatible, so you can avoid a return.
BIG/DEMI BOTTLE KISS CAP - BIG/DEMI BOTTLE KISS CAP: The cap is engineered so the bkr Paris Water Balm can snap on and off. If you want to keep balm with your bottle, this cap adds that convenience; if not, a simpler cap may suffice.
