The Rosalina is part of BeautiFeel's Office Chic collection. These shoes run true to size for European fitting.
Use this chart to convert from European to U.S. sizes:
EU 36 - US 5-5.5
EU 37 - US 6-6.5
EU 38 - US 7-7.5
EU 39 - US 8-8.5
EU 40 - US 9-9.5
EU 41 - US 10
EU 42 - US 10.5-11
The high vamp helps to support the midfoot and heel while providing extra "wiggle" room for your toes.