How to Choose Women's Shoe Size Online: US/EU Fit Guide for Flats, Sandals and Mary Janes

TAOMENGSI Mary Jane flats with US and EU size fit guidance

Buying women's shoes online is easier when the size format is clear. At TAOMENGSI, sizes are being presented in a US/EU format such as US 5 / EU 35 so shoppers can compare quickly before choosing a pair.

Still, size is only one part of fit. Toe shape, strap placement, heel height, upper material and sole structure all affect how a shoe feels. Use this guide before buying flats, Mary Janes, loafers, mules or sandals online.

Round toe Mary Jane ballet flats for online size and fit guidance
Use the US/EU size label together with toe shape and strap fit before choosing a pair online.

1. Start with the US/EU size label

If you normally wear US sizing, match the US number first. If you normally shop by European sizing, match the EU number first. A combined label such as US 7 / EU 38 makes it easier to avoid choosing the wrong regional size.

If you are between sizes, think about the shoe shape. Round-toe and square-toe shoes often feel more forgiving. Pointed-toe styles may need more careful fit, especially if your foot is wider at the front.

2. Match the size decision to the shoe style

  • Mary Janes: the strap helps the shoe stay secure, so toe room matters more than choosing a tight fit.
  • Ballet flats: check whether the upper is soft and whether the opening may rub the top of the foot.
  • Loafers: choose enough width across the front because loafers often have more structure.
  • Sandals: make sure your toes do not sit too close to the front edge, especially for wedge or heel styles.

3. Use foot shape as a buying filter

For wider feet, start with square-toe flats, round-toe Mary Janes, mules or adjustable sandals. For narrower feet, straps and buckles can help reduce slipping. For long walking days, prioritize soft soles and stable heels over delicate silhouettes.

Helpful TAOMENGSI styles by fit need

Before checkout

Review the product size selector, compare the US/EU label, and consider whether the shoe shape matches your foot. If you need more help, visit the TAOMENGSI Shoe Size Guide or contact support before ordering.

Shop New Arrivals With US/EU Sizing