Bottle Silicone Boots Cup Sleeves 100PCS. These silicone boots coffee cup sleeves allow for a flexible compatible with the 12-24 oz water bottles. Made of silicone material. It’s the perfect stainless steel water bottle accessory for your active, on-the-go lifestyle. Perfect for all sport and outdoor activities. Great for any events. Available to imprint logo.1 location includes the shipping cost to US. Orders of 2,000 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.