Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Zip Fins are Great!

My friend had an older pair and let me try them as I decided I wanted to swim to lose weight and get back into shape. Hers were great so I ordered a pair of my own and every time I go to swim (5-6 times per week) I use these to help my workout and improve my freestyle kick. I see many people at the pool where I go to work out using these fins and they are all happy with them. I am so glad I got the fins as yesterday I was so happy to swim one mile for the first time in one month. These fitness fins have really helped me improve my workout...get a pair...you'll love them!