B.BOX drinking cup with straw 450ml

 
It has an unusual triangular shape, making it easier to hold; a special removable silicone straw, installed at an angle – allows you to drink the beverage to the last drop; convenient opening system - button; built-in lid - provides... convenience plus protection from spills and contamination of the straw, as well as loss of the cover; it does not leak; a handle at the top - allows you to carry the bottle or attach it to a strap in a backpack; the walls are transparent, allowing you to control the amount of beverage left, and also makes it easier to keep the bottle clean.