FITS PERFECTLY- Our silicone boot is designed to perfectly fit Stanley Adventure Quencher Travel Tumblers (20oz, 30oz, 40oz), Stanley H2.0 FlowState (30oz, 40 oz) with handle, Stanley IceFlow Tumblers (20oz, 30oz), Hydro Flask water bottles (24oz, 21oz, 20oz, 18oz, 16oz, 12oz), Hydro Flask 35/ 40 oz Travel Tumbler, and for Simple Modern 30/40 oz Tumbler, for Simple Modern 20/24/28 oz Classic & 14/18/ 22 oz Summit & 20/ 24 oz Ascent water bottle EXTENDED COMPATIBILITY- Our silicone boot is also compatible with other popular brands & sizes. It fits Owala 40oz stainless steel tumbler,YETI Rambler 20/ 30 oz Travel Mug & Tumbler, YETI Rambler 12/ 18/ 26 oz water bottle. Suitable for tumblers or water bottles with a base diameter of 2.8-3 inches（7.1-7.6cm) MAXIMUM PROTECTION - This durable bottom boot helps protect against dents, dings, and damage. Give your water bottle a longer life. SIMPLE CHECKERED DESIGN - You can choose the same color with your bottle or different ones to create your own scheme the way you want it. Our boots can protect your water bottle from noise, dents, and damage BETTER SERVICE- Any questions, please contact us, we will reply within 10 minutes during working time Protect your favorite water bottle or tumbler with our durable, round silicone boot. Designed to fit a wide range of popular brands and sizes, including Stanley, Hydro Flask, YETI, and more, this boot offers maximum protection against dents, dings, and damage. Its textured, non-slip surface ensures stability, while the simple, checkered design adds a touch of style. Compatible with bottles and tumblers with a base diameter of 2.8-3 inches (7.1-7.6cm), this reusable boot is perfect for sports, travel, hiking, and camping. Measures 2.8 inches in width and 1 inch in height.