Fits perfectly : Three sizes available,small size for 12-24 oz bottles,large size for 32-40 oz bottles X-large size for 64 oz bottles,please choose the correct size for your cup when purchasing.
Non-slip and durable : This durable and non-slip bottom boot protects your Flask bottle against unexpected scratches, dent and impact during outdoor sports.
Safety material : This bottom sleeve is made of high quality BPA-FREE silicone,safe and practical. A variety of colors to choose from.
Multi-function : In addition to the anti-slip and anti-collision functions,this Protective Silicone Boot can also be used as a pet bowl to share the joy of exploration with your pet.
Warranty : 18 Month warranty. Not satisfied, no reason to Return anytime.