1.ALL AROUND IMPACT PROTECTION! Ultra thick & durable sleeves made from premium 100% silicone to provide the most protection & firm grip surface for your bottles. Shield your glass bottles / flasks from everyday wear and tear, chips, breakages, dents, and more. This is the only silicon sleeve with a 2mm thick wall & 3mm thick base to help absorb shocks & drops. Whether you're at the gym, office, going hiking, on travel or just at home, your Brieftons silicone sleeves will protect your bottles!2.ADD GRIP TO YOUR BOTTLE, MINIMIZE WATER CONDENSATION & HEAT TRANSFER! Tired of your bottle slipping out of your hand? Our proprietary textured design creates a natural, nonslip grip that eliminates condensation slippage and provides a safe, snug fit so you don't have to worry about your bottle coming loose. In addition, the thick wall and base ensure the heat from your bottles don't get transfered to your hands or to the counter surface.3. QUALITY YOU CAN TRUST & AN ATTRACTIVE DESIGN! These premium, BPA free silicone sleeves are engineered to last for a lifetime. They will not tear, shrink or stretch under normal use. 4. EASY TO INSTALL: To put the silicone sleeve onto your glass bottle, first wet both your glass bottle & the sleeve with soapy water, then carefully slide the sleeve onto the bottle. To remove the silicone sleeve, first wet the glass bottle & the sleeve with soapy water, then carefully slide the sleeve off the bottle 5.EASY TO CLEAN: Dishwasher safe (top rack) for a quick cleanup.