Details
Size & Fit
Sustainability
The Portofino in Antique White is a refined summer sneaker handcrafted in Italy from soft off-white full-grain calf leather. Its lightweight, breathable design is lined only at the ankle and set on a white Strobel-constructed rubber sole for a clean, flexible finish. Style it with stone chinos and a cream tee, or elevate with tailored beige trousers and a short-sleeve button-down.
- Handmade in Tuscany, Italy
- Constructed from full-grain Italian calf leather
- Set on a 100% rubber sole (50% natural, 40% recycled, 10% conventional)
- Tightly stitched for water resistance
- Threaded with waxed cotton laces
- Fitted with a removable OrthoLite® Hybrid™ insole
- Fits true to size. Take your normal US size.
- Only available in full sizes. Go down to the nearest whole size if you wear a half size.
- Width B - Standard
- Unlined construction, has a soft feel and a slightly more relaxed fit than the Capri model.
- Width can be adjusted by tightening/loosening the laces.
- Not sure of your size? Reach out to our team for a recommendation.
LWG-certified leather: This sneaker is made from leather that's certified by the Leather Working Group (LWG), meaning the hides are responsibly tanned in facilities that safely and carefully manage emissions, energy and water consumption, and waste.
FSC®-certified natural rubber: 50% of this sneaker’s sole is Forest Stewardship Council®-certified (FSC®) natural rubber. This certification ensures the rubber is sourced from a forest that’s responsibly managed to prevent deforestation.
Recycled materials: 40% of this sneaker’s sole is recycled rubber. It also has an OrthoLite® Hybrid insole made with recycled foam and rubber from previous production processes.
Returns/Exchanges
We accept returns and exchanges of most unworn and unused products within 14 days of delivery. A $14 fee will apply to all returns/exchanges. You can waive this fee by opting into Checkout+ for $7.98 at the time of purchase. Checkout+ provides free returns/exchanges, and also includes order protection. Items purchased with a discount may only be eligible for store credit or exchange, or may be final sale.
*Accessories and cleaning products are not eligible for return or exchanges.*
International Orders
We accept returns on international orders within 14 days of delivery for unworn and unaltered items. A $25 shipping label fee applies for all international returns, and original shipping fees are not refundable.
Please see our full return policy here.
Size Guide
Whether you already know your size or need help figuring it out, this guide will help you confidently choose the right fit for our Portofino sneaker. With just a few quick measurements, you'll be able to determine the Koio size that works best for your feet and your comfort preferences.
Instructions to Measure Your Foot
Follow these simple steps to get an accurate measurement:
- Place a sheet of paper against a wall or straight edge.
- Stand with one foot on the paper, heel touching the wall.
- Using a ruler, measure from the wall to the tip of your longest toe.
- Record the measurement in centimeters or inches.
- Repeat the process with your other foot.
- Compare your measurement to our size chart below.
- The centimeter (CM) and inch (IN) measurements in the size guide represent the maximum foot length that comfortably fits each size. For the best fit, we recommend selecting a size where your foot length is slightly less than or equal to the listed measurement — depending on your personal comfort preference and how much room you like in your shoes.
- For example: If your foot at the longest toe measures 29.5 cm, that falls between 29.0 cm (US 11) and 29.8 cm (US 12)—in this case, your size is a US 12.
| Shoe size | | Maximum foot length | |||
US | UK | EU | | CM | IN |
| 7 | 6 | 40 | | 25.6 | 10.1 |
| 8 | 7 | 41 | | 26.4 | 10.4 |
| 9 | 8 | 42 | | 27.3 | 10.7 |
| 10 | 9 | 43 | | 28.1 | 11.1 |
| 11 | 10 | 44 | | 29 | 11.4 |
| 12 | 11 | 45 | | 29.8 | 11.7 |
| 13 | 12 | 46 | | 30.7 | 12.1 |
How can we sell a $600 shoe for $265?
We cut out the middlemen.
Our Value
At Koio we’re striving to make the most valuable shoe on the market. For us, value doesn’t come from an outrageous ticket price; it comes from pairing ethics with the highest-quality Italian materials and craftsmanship to create the best shoe we can, and pricing it at a fair margin that allows us to do business sustainably.
Our Quality
Each of our shoes passes through the hands of 42 craftspeople at our manufacturer in Italy, using locally sourced premium leathers, suedes, and recycled materials. We’re creating footwear that’s matched only by the world’s most renown luxury brands in its dedication to quality. How do we know? Because we see their shoes being manufactured next to ours by the same craftspeople.
Don’t get us started on retailers. Italian leather shoes of comparable craftsmanship are sold for twice the price of Koios or more. When a luxury brand sells a shoe to a retailer, the retailer applies a markup of at least 100% to the wholesale price—the price that they are paying the luxury brand—in order to come up with the price that you are seeing in the store. When you buy a pair of $600 leather shoes through retail, at least half your money goes to the store location.
We get around the unnecessarily pricey world of traditional retail by selling the finest Italian leather shoes directly to you.
Here's to getting the best value for your money.
