I ordered two pairs of the Vifuur Water Shoes Toe Cap Anti-Collision for Men Women in the sizes my husband and I usually purchase but found that they run small. I tried to figure out on my own how to return them for an exchange but ended up confused by the instructions and lack of a return form. So, I reached out via the chatbox. Eventually, I got an e-mail reply (you have to give them time because they are located in China). The customer service person was very nice and offered to send me new ones without my returning the too-small shoes. That was very nice and I took them up on their offer. I am awaiting the arrival of the replacement shoes. Other than being too small, we anticipate that the shoes will work great for our purposes, which are on the beach and swimming with snorkel gear.