This 750 ml double-wall stainless steel vacuum sports water bottle is designed with a sip straw for easy-drinking, paired with a secure lockable lid to ensure spill-free convenience on-the-go. The premium locking straw mechanism solves the problem of weak straws that keep falling out. Made with SS304 stainless steel inner wall and SS201 stainless steel outer wall. The bottle keeps drinks hot for 8hrs and cold for 12hrs - a true companion in your everyday whereabouts. Packed in a gift box