I did a Koi Footwear haul for 3 shoes of which 2 came in damaged. Not only was the sizing incredibly inconsistent between all three shoes, but also if you're a half size and live in the US, you may not find a fitting pair at all since they do not offer half sizes. Admittably, the designs are gorgeous, but not worth the hassle and other issues with this company. I'd also like to point out that "vegan" is simply a selling point for this company, they're not doing anything special with the shoes, it's just faux leather/fur etc.
The shipping to the US costs a lot, and you also have to pay at least $14 minimum return shipping, even if you show them full proof of the damaged items (which clearly is a fault on their end). The shoes came in a heavily damaged trash bag-like package so I'm not surprised by this treatment. The quality is mediocre at best with the prices being higher than good quality shoes you could find for a good deal at a TJ Maxx.
I had to go back and forth in email with koi for 3 weeks regarding the return of the damaged items and I have had one of the WORST customer experiences in my entire life with Koi Footwear concerning the return of the 2 damaged shoes I sent back. There was always a different person replying to my emails asking for the same repeated information, and they don't understand how postage works in the US (I am assuming the person dealing with my return is from the UK), they have incredibly poor grammar and writing, and I spent 3 weeks dealing with 20 back and forth emails. Delayed shipping is a fault of USPS, but I have been asked for absurd amounts of "proof" that I sent the package back even though I provided photos and a tracking number, and they can't seem to stay on track with what items I even returned (even though I filled out their forms and everything). I eventually even added a photo of the receipt. After a month I received my refund.
This is absolutely unacceptable for Koi Footwear, and unless you are willing to just keep whatever shoes you get, I strongly suggest you completely skip koi to avoid dealing with a mess like mine.
Find my full review here: https://www.youtube.com/watch?v=78WtQFmsCBQ&t=571s&ab_channel=jemi