This chart does not provide a gurantee of a shoe size conversion, it is merely a guide.
Koru Collection
Nuku
Nuku
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Step into sustainable comfort with the Nuku Slip-On Shoe, crafted from vegan materials for an eco-friendly choice. The knit upper provides a breathable, flexible fit, while the padded heel ensures added comfort with every step.
The Koru Collection features a 1" polyurethane sole which is extremely lightweight, durable and slip resistant.This collection uses a hand-sewn Strobel construction making it strong and flexible. Zero-drop design supports natural alignment for better balance, posture, and comfort.
Plus, it's American Podiatric Medical Association (APMA) accepted for promoting good foot health. It is recommended that half sizes should size up.
Product Information
• Fit: Runs small, half sizes should size up
• Sole Material: Polyurethane
• Heel Height: 1"
• Platform Height: 1"
• Heel/Toe Drop: 0
• Width: Medium
• Slip Resistant: Yes
• Orthotic Friendly: Yes
• Replacement Footbed: Koru

Size
Runs Small
True to Size
Runs Large
I am giving these shoes four stars now but perhaps five stars can be in its future. I think it takes several wears for the foot to mold to the shoe. And the knit is a bit weighty (warm feeling) for summer wear in Florida. They are extremely light weight, though, and that makes them good for travel. They are very comfortable without socks and the knit is not constricting. Naots are always. Good choice for comfort. I always order size 40 in closed Naot shoes and sneakers but a 39 in sandals. These size 40 shoes are perfect for me.