Willi Footwear

Slim Black Flip Flops + Navy Diamante Straps

Slim Black Flip Flops + Navy Diamante Straps
Slim Black Flip Flops + Navy Diamante Straps Slim Black Flip Flops + Navy Diamante Straps Slim Black Flip Flops + Navy Diamante Straps Slim Black Flip Flops + Navy Diamante Straps Slim Black Flip Flops + Navy Diamante Straps
5 Star Reviews


Interchangeable Size

  • Black straps attached + Comes with an additional pair of colored straps
  • Tapered two-tone foot bed with foot arch support
  • Lightweight premium blend rubber
  • Foot-bed molds to the shape of your feet
  • Regular fit base with regular straps
  • Non-slip rubber sole
  • Unisex size is displayed on the heel of the base and bottom of the boomerangs
  • Premium PVC foot straps with metal logo badge
  • Boomerang plugs allow the straps & bases to be interchangeable
  • Too tight or too loose? Get the next size up or down in the straps
  • Get FREE replacement straps if they break
  • Customise your colours and style in less than 30 seconds... no tools, no fuss!

The boomerang plugs have been designed to help minimise the dreaded “blow out” (when the plug snaps off). If, for some reason you get ‘unplugged’, you should be able to simply push the plug back through the hole in the base.

If the strap breaks - let us know and we'll replace them for FREE :)

The bases will vary slightly. It is best to measure your foot or an old pair, from the center of the heel, to the top of your big toe.

Please always check your size before ordering as you will incur postage fees should you need to swap for a different size.


Do you have really narrow or really wide feet?
Smaller or larger sized straps can be added to different sized bases. This means you can customize your fit to perfection!
Slim straps can be added to the corresponding Men’s / Unisex base and vice versa.
Get in touch if you need help choosing your size.


The Boomerangz size range is based on the MEN’S US size range. Although they are UNISEX (it says UNISEX on the base) – This means that if you are ordering a ladies slim style and you are normally a 9, you will need to order a 7/8 instead. If you are normally a 7/8, you will need to order a 6 and so on… best to measure your foot or an old pair and use the sizing charts provided  🙂





  1. Click on the link below of your desired size
  2. The PDF will open in a new window
  3. Click FILE then click PRINT
  4. Make sure PAGE SCALING is set to NONE
  5. Place your foot in the outline to see if that is your correct size
  • US Slim 4/5 — 235mm — 9.25 inches L — 3.93 inches W
  • US Slim 6 — 247mm — 9.72 inches L — 3.74 inches W
  • US Slim 7/8 — 260mm — 10.24 inches L — 3.85 inches W
  • US Slim 9 — 272mm — 10.71 inches L — 3.93 inches W
  • US Slim 10/11 — 286mm — 11.26 inches L — 4.05 inches W



All orders are sent via Canada post and come with a tracking ID number.
All orders are sent by expedited post.

Depending on your location, Packages should arrive within 2-5 business days… (sometimes sooner).

Orders over $80 = FREE SHIPPING

Shipping prices vary for each province.
Orders $0 – $80 = See list below:

  • Ontario – $5
  • BC (British Columbia) – $7.50
  • Alberta – $7.50
  • Saskatchewan – $7.50
  • Manitoba – $7.50
  • Quebec – $5
  • New Brunswick – $7.50
  • P.E.I (Prince Edward Island) – $7.50
  • Nova Scotia – $7.50
  • Newfoundland and Labrador – $7.50
  • Yukon – N/A
  • Nunavut – N/A
  • Northwest Territories – N/A


Awesome flip flops by the way. Best I have ever had – Michael

They’re the best ones I’ve ever owned!
5 stars from me. I’ve been ordering a new pair of flip flops every year since 2017 cause they’re the best ones I’ve ever owned. I had one blow out a couple of years ago and I had new straps sent to me free of charge straight away. Bloody great service and bloody great flip flops. Well done Boomerangz. – Nigel

Excellent products and outstanding service.  Great job Boomerangz!! – Jo

Best flip flops on the market!
Had my Boomerangz for a few years now, best flip flops on the market by a mile, on one occasion, the straps have broken and they were promptly replaced without a problem. I’ve had other big name brands before and only got a couple of months out of them before the sole wore through or straps broke where as these soles are still going strong (and bloody comfortable)…. I highly recommend these to everyone, especially for those who are hard on their footwear as they have with-stood some heavy lifting under me! Cheers. – Chris

I LOVE Them!
My flip flops are still doing great after 12 months, but I WANT an upgrade haha.. I LOVE them. So happy with the design of them. – Rebecca

Simply THE Best!
This is the second time I have purchased the Boomerangz Flip Flops and they are simply THE best and longest lasting footwear I have owned! – David

Actually the BEST!
I had a blowout… the front part of the strap broke! But guess what? It was actually the BEST!! I just swapped out the strap. Good as new and a cool new colour – feels like new flip flops! – Jess

These flip flops feel really strong and sturdy and I love the fact that if the strap ever breaks I can slip a new one in. Genius! – Cran
(Originally posted on

The best flip flops!
Great flip flops, quick delivery and excellent service. I have since gone back and bought more of them. – Gerry
(Originally posted on

Free replacement straps? No more blowouts? Yes please!! Awesome product. Awesome service. – Shaun

Feel the love!
Love your company, love your product, love your service and will be recommending you to every man, woman and child within my acquaintance. Keep up the good work. – Alison

Very Happy!
Very happy with the feel and comfort of my new flip flops and the ease of changing the straps. I am now looking forward to buying another pair soon. – Jim