Customized Water Bottle Thermos 350ml vacuum flask,slim insulated water bottle,350ml,500ml available Easy lock lid - Made with one hand, easy to lock and easy to release lid for quick and easy drink access Double Wall Vacuum Insulation - Excellent heat preservation system, 60 degrees heat preservation for about 8 hours, 40 degrees heat preservation for 15 hours. It depends on the temperature at which you refill the bottle and how many times you open it or the outside ambient temperature. Durable stainless steel construction, made of stainless steel, this container is built to last Proof of sealing and safe in the bag. There is an open lock on the lid to prevent water from spilling.Perfect for putting in a golf bag, it's a great item to store in a laptop bag, briefcase or pocket book without worrying about spills. Round bottle mouth for comfortable drinking. Frosted bottle, comfortable to hold This slim insulated water bottle is suitable for travel, outdoor, office. Perfect gift for your friends and loved one. Packaging can be selected from cylinder, color box, gift box, egg box packaging and other optional packaging. FAQ Q: Do stainless steel water bottles rust? A: In addition to being chemical-free, stainless steel water bottles are rust, corrosion and stain resistant. If designed well, they don't give mold and bacteria a place to hide. Q: Can you customize for clients? A: Yes, we can customize as your need, we have RD department, our designers can make design for you and our technicians make prototype. Q: What's your products? A: One stop service of stainless steel vacuum flasks and bottles,food jars,mugs and tumblers,accessories and so on.We also welcome OEM for these series and we have a good experience to help customer to open new products.Customized Water Bottle website:http://www.lvtengbottle.com/water-bottle/