• ONYX | Sandal Black
  • ONYX | Sandal Black
  • ONYX | Sandal Black
  • ONYX | Sandal Black
  • ONYX | Sandal Black

ONYX | Sandal Black

£75.00
Tax included. Shipping calculated at checkout.
black · Made from Ocean waste
The ONYX transforms 300g of rescued ocean flip-flop waste into our iconic, colourful and supportive midsole. It's finished with vegan, cruelty-free materials and features an extra-cushioned footbed for all day wear.
ocean impact
Each pair rescues 300g of ocean waste flip-flops
Premium comfort
soft cushioned foam layer on top of the footbed
Certifications
V-Label pending
main fabric content
Recycled PVC + PVC
fit
regular width · unisex
Size:

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Customer Reviews

Overall rating: 4.8 / 5 from 106 reviews.

Customer photo review of ONYX | Sandal Black

Very comfortable sandals and I have worn them many times in this hot weather. I particularly love the fact that recycled material has been used and that no animals were harmed in the making of these sandals. I also received excellent and prompt service from the Nuoceans team. Thank you.

ONYX | Sandal Black

Customer photo review of ONYX | Sandal Black

You won't be getting my new sandals off my feet! Not only are they partly recycled, but they are so comfortable, and have that little bit of extra height in the sole.

ONYX | Sandal Black

Customer photo review of Onyx

Been wearing mine for a few weeks and would def recommend. Chunky style gives good support. Not a cheap purchase but feels like good quality that will last me many summers.

Onyx

Customer photo review of Onyx

Over the moon with these shoes!!! i've just purchased the covered ones in black too !!!

Onyx

Customer photo review of Onyx

So glad I decided to buy these! I was worried they would be too narrow and the uppers would rub but they are really comfy.

Onyx

Customer photo review of Onyx

very comfortable and easy to walk in. true to size. I love them!

Onyx

Customer photo review of Onyx

I love the look of these and that they are eco. I have worn them a four times already and tbh they really really hurt my feet so much that I'm not sure I can continue to wear them. Which I am so sad about as I love them. I will continue to wear them in but the top strap just makes my foot so sore. It doesn't rub just makes the inside of my bone so sore. One day I couldn't bear to walk after I'd worn them all day. Absolute pain. It's probably my feet and not the sandals. But anyway, love the product and the service but am praying that they wear in soon.

Onyx

Customer photo review of Nuo Onyx

Really for Oz! Happy to be environmentally friendly and stylish at the same time.

Nuo Onyx

Love, love, love these sandals! So comfortable and stylish, plus they're good for the oceans too. What's not to like?!

ONYX | Sandal Black

Very comfortable during short or long periods of time and I’m happy in the knowledge that what I’m wearing on my feet has helped to get some of the man-made crap out of the ocean and off the beach.

ONYX | Sandal Black

I love my black sandals so much I am considering buying more pairs in different colours. Super comfy, stylish and gets the conversation going about recycling and reusing materials.

ONYX | Sandal Black

Very comfortable and love that they’re made using recycled flip flops 🥰

ONYX | Sandal Black

Love my shoes fit was great wore them all day no rubbing

ONYX | Sandal Black

A bit hard at first but after wearing them just a couple times, they are super comfy and I wear them all the time

ONYX | Sandal Black

Really good value for money, quick delivery, and they have been really comfortable - would definitely recommend!

ONYX | Sandal Black

I love your story and how your sandals came about , the materials are amazing against my bare feet. But i can only wear for 30 minutes or so and them my feet begin to ache. Will wear them around my home

ONYX | Sandal Black

Love these sandals, barely taken them off the last few months!

ONYX | Sandal Black

Pleased overall but think the sandal base could be more comfy on the foot

ONYX | Sandal Black

Like the style and fit, I would like to see a better choice of colour for the recycled soles

ONYX | Sandal Black

I’ve wanted a pair of good quality vegan sandals for a long time but couldn’t justify the price. When I saw these pop up on my timeline I had to have a look. A good price for a good item and an ethical one too, win win. They are so comfortable and easy to adjust for the perfect fit. I’m so glad I got them and love how they look with whatever I wear.

ONYX | Sandal Black

These shoes are very comfortable and look great. I bought them mainly because they use recycled material however after wearing them a couple of times the black rubber sole has started to come away at the front. I’m going to try to fix this and hope it prevents any further damage.

ONYX | Sandal Black

Look great and comfortable. I had to exchange for the next size up (I'm often between sizes) and exchange process was easy and I didn't have to pay any additional postage.

ONYX | Sandal Black

Lovely quality, comfortable sandals. Great value and ethos!

ONYX | Sandal Black

My son is abig fan of the 'other ones', so I decided to get myself a pair.....but then I spotted Nuoceans and I'm so glad I did. I love the fact they are sustainable, made using ocean waste (discarded flip flops), something l am glad to support. Great service, prompt delivery and fantastic sandals. I've been sharing the word with friends and think I may have even convinced my son to give them a try!

ONYX | Sandal Black

SUPER quick delivery and well packaged! Shoes are beautiful and very comfy.

ONYX | Sandal Black

Easy to use website. Excellent fast service. Great fit, "like walking on clouds". What a brilliant idea, so sustainable and stylish. These were a present but I'm sure we'll all end up with a pair.

ONYX | Sandal Black

The shoes are light and very comfortable, even for my feet which are very narrow! Im thinking I might buy the clogs when the colder weather comes. They are also very well made. The sizing chart, giving foot measurements was really helpful. It took me half a size larger which has proved just right.

ONYX | Sandal Black

I've honestly worn mine every day since I bought them about a month ago! I have wide size 8.5(UK) feet, so sized up to a 9UK (43eur) and they fit SO WELL. It's so rare to find properly good vegan shoes that fit bigger feet. I haven't bothered buying sandals for yeeeears because they're usually uncomfortable for wide feet regardless of any sizing up and/or badly made so don't last/mark your feet with cheapo fake leather. I have none of these problems with my new sandals and I'm already recommending them to friends & family. They're comfy enough to wear for walks to the shops or round the park, they fit so well I can easily ride my bike miles in them, AND stylish so I don't look like a scruff all summer. I'm so glad I made the investment and got myself a pair!

ONYX | Sandal Black

Very comfortable and all I’ve worn in this summer.

ONYX | Sandal Black

Love my sandals. Super comfy and great quality

ONYX | Sandal Black

Thankyou so much - Love them 🌊🩵

ONYX | Sandal Black

Super comfortable and they look great as a summer evening show. Cherry on top knowing they’re not leather!

ONYX | Sandal Black

My first pair that I've ordered and I'm really pleased with them. I've had a few comments too saying how nice they look.

ONYX | Sandal Black


We use recycled PVC instead of virgin plastic or animal leather. It’s not perfect, but it’s a more responsible use of what already exists.

We’re not there yet - but we’re on our way to moving away from plastic completely and towards bio-based materials only. Our coconut fibre model is a start.

DESCRIPTION

The ONYX sandal is our everyday classic. Soft, calm, and endlessly wearable. Each pair gives new life to 300g of rescued ocean flip-flop waste, transformed into our iconic, colourful and supportive midsole. Finished with vegan, cruelty-free materials.

FEATURES

  • Outsole height: 35 mm (or “≈ 3,5 cm”)
  • Cushioned insole
  • Fits narrow/regular feet, add an extra size for wide feet.
HOW IT'S MADE