The Royalford vacuum insulation technology for maximum temperature retention. This bottle Highly functional, beautifully designed, built to keep up with life. Our vacuum water bottle is lightweight and portable, suit for the gym, yoga, runners, athletes, travel, hiking, cycling, tennis, camping & office work and fits in most standard car and bike cup holders.The Stainless Steel bottle 100% BPA-free and No peculiar smell, the inner wall is not easy to be stained with beverage residues, easy to clean, and a refillable cold/ hot water bottle without chemical leaching. An environmentally friendly sports water bottle to keep you healthily hydrated. The Royalford vacuum water bottle with 360 rotatable one-finger carry belt, lightweight and portable, suit for the gym, yoga, runners, athletes, travel, hiking, cycling, tennis, camping & office work and fits in most standard car and bike cup holders.This food-grade stainless steel on both inside and outside walls, lead-free, rustproof, unbreakable, durable, it won't retain or transfer flavours, giving you the pure taste of your drink. It is perfectly sized for easy cleaning, sipping or gulping, creating fruit-infused water, and adding your soup or drinks without making a mess.