The Hot or Cold thermos bottle from Twistshake, with a capacity of 420 ml, is made of high-quality stainless steel. Its sleek design makes it perfect for Twistshake drinks and fits easily into your diaper bag. Keep your beverages cold or hot for up to 10 hours. The double-walled stainless steel design makes this possible. The bottle is protected by a super-soft rubber layer on the outside, which feels very comfortable in the hand. The wide opening makes pouring a breeze. Please rinse your thermos bottle before first use. Shake the lid and dry it off, as water can accumulate inside. Do not freeze. Do not microwave.