Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
My son is on a swim team and requires them to wear a certain color during swim meets. I had originally purchased a different swim cap but it came off when my son dived into the water. I then decided to find a better swim cap. This cap is made with strong silicone material and stays on my sons head even when diving into the water. It is light weight yet very strong and well made.
I purchased this swim cap at full price and this is my honest and unbiased review.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: A: very positive