Product Details: Our silicone boot are 2.85 inches in diameter and 1.7 inches high. Suitable for tumblers/water bottles with a base diameter of 2.8-2.95 inches, which can meet most 12-24oz water bottles on the market. If you are unsure, please measure the size of the bottom of your bottle before purchasing.

Fits Perfectly: Our protective boot are specifically designed for Stanley Quencher(30/40oz) H2.0 and Stanley lceFlow (20/30 oz) Tumblers. Also fits Hydro Flask Wide Mouth (12/16/18/20/24 oz), Hydro Flask Standard Mouth (18/21/24 oz), Yeti Rambler Tumbler(20/30 oz), Yeti Rambler Travel Mug(20/30 oz), Simple Modern Tumbler (20/24/28/40 oz), Simple Modern Summit (14/18/22 oz) and Ascent (12/17/20/24 oz), Vmini Wide Mouth(12/18/24 oz), Vmini Standard Mouth(12/18/22 oz), KISSKIND 40 oz Tumbler, DOMICARE 40 oz Tumbler, TLINNA 40 oz Tumbler, Crave Cups 40 oz Tumbler, COKTIK 40 oz Tumbler, BELYQLY 40 oz Tumbler, Coldest Water Bottle with Handle(36/46 oz) and other water bottles. Silicone boots are available as Stanley cup accessories, Hydro Flask accessories, Owala accessories, Yeti accessories, etc.

Durable Quality: This water bottle boot is made of high-quality silicone, which is more flexible and does not deform. It is BPA-free and safe for children to use. Easy to use, easy to clean and reusable. Luminous bottle boots are creamy white in the daytime and emit a minty green light at night when they absorb bright light, making it a great way to quickly see your favorite water bottle in a dark room!

Easy to use: Shine a bright light (flashlight) on the boot for 2 minutes before use, then the boot will emit a minty green light in a dark environment.