The Falk Water Bottle by Liewood is made from the best quality 18/8 premium steel, so it's pretty much indestructible and has excellent thermal capabilities. You can rely on it to keep fresh drinks zingy and cold for up to 24 hours in the summer and warm ones warm for up to 12 in the winter. It's the perfect size for small hands to grip and the handy loop makes it easy for them to carry or to clip to their backpack.