Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great size, keeps ice all day

This thermos is great, keeps my ice tea cold all day! It's size is much better than the 18 ounce thermos. I bought one for my dad and I and just now placed another order for my mom. The mouth of the thermos is a little larger than my thermos 18 ounce hydration bottle which makes it easier to put ice in it. The loop that comes with the thermos is great for attaching the thermos to my brake cable on the handlebars of my bike.