Greta Flip Flops


Size Guide

Lightweight. Comfortable. Durable. These women's flip flops are the ideal blend of comfort and style. These sandals are the perfect addition to your summer capsule wardrobe. Features our slimmest and most streamlined, minimal footbed.

  • Soft, matte finish.
  • Shape designed for a wide range of foot shapes.
  • Straps that lie flat against your feet prevent chafing.
  • Flexible shoe designed for all-day comfort.
  • Shoe is 100% recyclable (plastic symbol #3) and made from a blend of used shoes, scrap material, and our own proprietary bio-based material.
  • Bio-based material contains 45% soy by weight and is BPA, latex, rubber, and phthalate-free.
  • Send your well-loved shoes back for recycling when you're done with them and get a 15% discount on your next purchase.
  • Waterproof and slip-resistant.
  • Machine washable - colorfast material won't fade.
  • Made in the USA - handcrafted with love in Buford, Georgia.
  • 2-year quality guarantee.


    Oka-B Shoes size chart


      Sizing Note: If you are a half size, please size up for proper fit.

      Size & Fit

      If you are in-between sizes, generally we recommend ordering the next size up. Please reach out if you need recommendations!

      Women's Letter Sizing

      Women's US Size Oka-B Letter Size
      Kids 1-2 XXS
      Kids 3-4 XS
      5 - 6 S
      6.5 - 7.5 M
      8 - 9 ML
      9.5 - 10.5 L
      11 - 12 LL

      Women's Number Sizing - US to EU Conversion

      Women's US Size Women's EU Size
      6 36
      7 37
      8 38
      9 39
      10 40
      11 41

      Unisex Letter Sizing

      * only applies to Maxwell and Billie Unisex Slide Sandal

      US Size Oka-B Letter Size
      Women's 5.5 - 6.5 XS
      Women's 7 - 8 S
      Women's 8.5 - 9.5 / Men's 7 - 8 M
      Women's 10 - 11 / Men's 8.5 - 9.5 L

      Women's 11.5 - 12.5 / Men's 10 - 11

      Men's 11.5 - 12.5 XXL
      Men's 13 - 14 XXXL

      Men's Letter Sizing

      * only applies to Grayson Men's Slide Sandal

      US Men's Size Oka-B Letter Size
      7 - 8 M
      8.5 - 9 L
      9.5 - 10.5 LL
      11 - 12 XL
      12.5 - 13.5 XXL
      14 - 5 XXXL
      Materials & Care

      All Oka-B shoes are made with our proprietary bio-based material that contains 45% soy by weight and is BPA, latex, rubber, and phthalate-free. We do not use formaldehyde in the production of our products.

      Cleaning & Care:

      For our classic styles without embellishments, the easiest method is tossing them in your washing machine or the top rack in your dishwasher (yes, seriously).

      For our styles that have embellishments, we recommend brushing the embellishments lightly with a dry, soft brush to remove loose dirt. You can try to spot clean them with plain water and rub lightly with a soft cloth. Shoes with embellishments should not go into the washing machine or dishwasher.

      For really tough stains, try a small amount of rubbing alcohol on a cloth.



      Free standard shipping on orders of $75+ applies to orders shipped within the continental 48 states only.

      Free shipping is based on merchandise totals after transaction discounts and special promotions.

      For orders under $75 within the
      continental 48 states, we charge a flat rate of $6.99 per order.

      All items are shipped from Buford, Georgia, USA. 

      For all other customers, including shipping outside the continental 48 states and international customers, please call Customer Support at 1.800.443.6573 to place an order. 


      Please allow up to 5 business days for production and order processing before your order is shipped - during our busiest seasons please allow up to 10 business days.

      30 Day Returns

      Unworn product may be returned within 30 days of receipt for a refund or an E-Gift Card, excluding any applicable return shipping fees.

      Start An Online Return

      Recycling Info

      The majority of shoes sold in the United States aren’t recyclable, and most that claim to be are really just shoe redistribution programs. At Oka-B, we believe in closed-loop recycling to reduce the use of virgin material and to keep old shoes from becoming environmental waste. The average pair of Oka-B sandals made this year contain 15-25% recycled material.

      If you return your well-loved and worn Oka-B shoes to our factory, we will recycle them. Shoes that are free from contamination are recycled for use in new Oka-B products. Shoes with contaminants are processed and recycled for use in non-apparel goods.

      Mail us your shoes and we’ll email you back a 15% off promo code as a thank you from us and the planet.

      4823 ROY CARLSON BLVD.
      BUFORD, GA 30518

      2-Year Warranty

      We want you to love your shoes and offer a 2-year comfort and quality guarantee on all of our styles. If your shoes are damaged within 2 years of purchase, please contact us for a assistance with a FREE replacement pair or refund.



      Q: How do I contact Customer Support?

      A: You can contact us via phone at 1.888.730.8974 or via email at Our team is available Monday through Friday from 9 am ET to 5 pm ET, excluding holidays.


      Q: Do you ship internationally?

      A: Our Customer Support team is happy to help you with an order. Please contact us! You can shop our Canada website here.


      Q: How long will it take for my order to ship?

      A: We make every shoe just for you! When you place an order, we immediately get to work on hand-making your shoes. Typically your shoes will be ready to ship in 3 business days, but during extremely busy periods it could take up to 10 business days to process your order. Shipping time is not included and will add to this timeline.


      Q: Where are your shoes made?

      A: 100% of our shoes are made by our family-owned business in our Buford, Georgia warehouse. Our female leadership team goes the extra mile to ensure fair wages and safe working conditions - we treat our team like family! We are proud to be part of the remaining 1% of footwear still made in the USA.


      Q: What materials are your shoes made of?

      A: Our proprietary, vegan bio-based material is 45% soy that is grown in the USA. We also grind up shoes that come back to us for recycling and use the materials to create new shoes.


      Q: How do I wash my shoes?

      A: For our classic styles without embellishments, the easiest method is tossing them in your washing machine. For styles that have cute bows and attachments (our favorites!) we recommend scrubbing them with a brush in your sink, or using the top rack in your dishwasher (yes, seriously).


      Q: How do I recycle my shoes?

      A: We LOVE when customers send their worn out sandals back to us. Why? We actually clean and re-grind used shoes and use the materials to create new shoes. On average, our shoes contain 25% recycled materials. You can send your shoes to our warehouse in Georgia:

      4823 ROY CARLSON BLVD.
      BUFORD, GA 30518

      Customers are responsible for the cost of sending their shoes back for recycling. As a thank you, we'll send you a coupon for 15% off your next purchase when your shoes are received. If you prefer to recycle yourself, you can contact your local recycling facility and ask for details.


      Q: What is your return policy?

      A: Any unworn product may be returned within 30 days of receipt for a full refund or exchange, excluding the original shipping fee (if applicable). Customers are responsible for the cost of return shipping - this allows us to keep our shoes better priced for everyone. You can read our full policy and download a return form here.


      Q: Do you offer a warranty?

      A: We know you'll love your Oka-B shoes and that you'll wear them for several seasons. But just in case, we offer a 2-year guarantee. If your shoes break or don't meet your quality expectations, please contact our Customer Support team for assistance with a replacement pair.


      Q: Can I purchase a gift card?

      A: Of course! Our e-gift cards make the perfect gift. They do not expire and can be used for anything on our website. You can purchase them here.


      Q: How do I sign up for emails and text messages?

      A: You can join our VIP list here. If you like exclusive offers, early access and fun events, then this is the place to be! Plus, you get a 15% off coupon on your first purchase.


      Q: Who do I contact to purchase Oka-B for my boutique?

      A: Please reach out to our wholesale team at 






      Contact Us

      By Phone:
      (9 am - 5 pm ET, Mon - Fri)

      By Email:


      Shoes That Love You

      We never sacrifice comfort for good looks. So we offer both. We know you'll love your Oka-B shoes, which is why we design them to last season after season. Your shoes also come with a 2-year guarantee, just in case.


      What We're Made Of

      Our USA-made bio-based material is vegan and sustainable, and well-loved shoes can be sent back to us when you're done with them for recycling. On average, our shoes contain 25% recycled materials.


      The Perfect Sole-Mate

      Some of our most-loved comfort features include our signature arch support, massage beads, and a heel cup for added stability.

      Join The Movement

      Good For You &
      For The Planet

      Love, Wear, Return

      We Know You'll Love Oka-B

      Handmade With Love

      Our shoes are handmade with love in Buford, Georgia, and we're proud to be in the 1% of remaining USA shoe manufacturers.


      Our recycled AND recyclable shoes are made with a soy bio-based material. Better for you, and better for our planet.

      Shoes That Love You

      Water resistant and easy to clean are just a couple of our most-loved shoe features. Our shoes are designed for comfort. Because cute only works if it's also comfortable.

      Shop Our Top Categories

      Flip Flops

      Sandals & Slides

      Ballet Flats

      Get In Touch

      Have questions about your order or a general inquiry?