**Product Specifications:**
Brand: Yierkang
Measurement Standard: 40 yards
Measurement Method: Manual measurement with an error of around 5mm
Upper Material: Cowhide leather
Heel Style: Flat heel
Closure: Slip-on
Lining Material: Fabric (for one pair), Pigskin leather (for another pair), Fabric (for the third pair)
Toe Style: Round toe
Outsole Material: Polyurethane (for one pair), Rubber (for another pair), Plastic (for the third pair)
Shoe Length: 28.7cm (for one pair), 29cm (for another pair), Not specified (for the third pair)
Shoe Width: 10cm (for one pair), 10.5cm (for another pair), 10.8cm (for the third pair)
Heel Height: 2.7cm (for all pairs)
Inner Height Increase: Not applicable
Boot Height: 5.5cm
Waterproof Platform: Not applicable
Available Sizes: 38, 39, 40, 41, 42, 43, 44
Shoe Number: 240, 245, 250, 255, 260, 265, 270
Sizing Tip: Choose the size based on leather shoe sizing. For example, if you wear size 40 in leather shoes, select size 40 for this model. If you wear size 40 in casual shoes, choose size 39 for this model (except for wide feet or high instep).
(Note: Each pair of shoes has slightly different specifications. Please refer to the specific details provided for each pair.)