Easy to open, carry, drink, close and secure, cap protects mouthpiece from dirt and dust, safe transport in bag or backpack, no leakage, neither upside down nor in horizontal position, even with carbonated drinks.pleasant feel of the bottle surface, free of BPA, perfect alternative to disposable bottles, use and reuse for many years, made of high-quality 18/8 stainless steel, recyclable (stainless steel), with wide-neck opening, easy to fill (liquid, ice, powder, etc.), easy to clean (with swing top).), easy to clean (with sponge, cleaning brush, etc.).