I purchased this as a full custom order about 4-5 years ago. It was used by a girl in the 5th and 6th grades of elementary school. I am selling it because she has outgrown it. 5x3mm There is damage to the wetsuit on both elbows. Other than that, the rubber parts are clean, and I have confirmed that it still has some stretch. I don't think water will get in. Neck entry Please refer to the photos to assess the dimensions and damage.