This product is a must-have for pumping Mama's out there. I am exclusively pumping at the moment and this product has been very helpful, I don't pump without it. The material is pretty sturdy It has a strong velcro closer and it feels like a thick wet suit material, If there is any leakage while pumping, it'll catch the leak. I've washed it several times it's so easy to clean I throw it in the washer and hang to dry.