Dear， Welcome，

The wearing of shoes can be used for swimming， river trekking， beach， yoga， office， car， gym and other indoor uses. About this product， a total of three， women's shoes size (4.5，5.5，6.5，7.5，8.5，9.5，); men's size (6.5，7，8，9，10，11，) have any questions， Please contact us by e-mail. Thank you!

This is the size of Asia shoes， see size information before buying， choose the right size， particularly the length of the shoe.
Shoes Size Chart:
Size: 36 (US-5.5)
Size: 37 (US-6.5)
Size: 38 (US-7.5)
Size: 39 (US-8.5)
Size: 40 (US-9.5)
Men's Size Chart:
Size: 39 (US-6.5)
Size: 40 (US-7)
Size: 41 (US-8)
Size: 42 (US-9)
Size: 43 (US-10)
Size: 44 (US-11)