To help you reduce your ecological footprint. These travel coffee cups are ideal for transporting coffee from home to work, or as an alternative to plastic coffee cups served at cafes. Made of 304 stainless steel, these cups are BPA free, corrosion-resistant and non-toxic. Designed with a 420ml capacity, and a hole for a straw to fit. The soft cup is made of non-toxic, food grade silicon and secures with a suction design to prevent leaks. Different designs are available.