Safe Material:Protective silicone sleeves for stainless steel water bottles,made of food-grade silicone, soft, flexible, and durable. Safe for all ages and dishwasher safe. Provides protection from scratches, dents, and damage to your stanley bottom. Wide Compatibility:The silicone boots fits Stanley Quencher Adventure H2.0 40oz and 30oz Tumbler with Handle, Stanley IceFlow flip 30oz and 20oz, Hydroflask 12-20 oz, Yeti Rambler 30 oz, 20oz 18oz, Yeti Rambler Jr. 12oz and Rambler 12oz, Simple Modern 40oz with handle, Simple Modern Summit Collection 10oz, 14oz, 18oz and 22oz, BEAST 30oz & 40oz, Drinco 30oz & 40oz tumbler. Easy to Install and Remove: Our silicone boot for Stanley cup with proper elasticity for a secure fit. Maximum protection: This durable bottom boot helps protect against dents, dings, and damage. Give your water bottle a longer life. It's the perfect stainless steel water bottle accessory for your active, on-the-go lifestyle. Perfect for all sport and outdoor activities. Top quality: Made of high-quality BPA-free silicone material, without any odor, non-toxic and harmless, can effectively protect your Stanley cup. Anti-slip design to prevent your cup from tipping over on wet hands or unstable surfaces. Easy to clean and reusable.