Interchangable Thongs +No More Blowouts

Willi Footwear

Women's Slim Purple Sandals v2 + Black Slim Straps

Women's Slim Purple Sandals v2 + Black Slim Straps
Women's Slim Purple Sandals v2 + Black Slim Straps Women's Slim Purple Sandals v2 + Black Slim Straps Women's Slim Purple Sandals v2 + Black Slim Straps Women's Slim Purple Sandals v2 + Black Slim Straps Women's Slim Purple Sandals v2 + Black Slim Straps
5 Star Reviews

AUD $39.95

Interchangeable Size

  • Comes with purple SANDAL straps already attached
  • Comes with an ADDITIONAL pair of SLIM black straps
  • New and improved tough and bouncy rubber
  • Foot-bed with soft premium light-weight PE rubber
  • Foot-bed moulds to the shape of your feet
  • Slim fit base with slim straps
  • Non-slip rubber sole
  • Unisex size is moulded on the heel of the base and bottom of the boomerangs
  • Please note: Size is a few mm shorter than the original/previous pairs.
  • Premium PVC foot straps
  • Boomerang plugs allow the straps to be interchangeable
  • 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 also 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.

Boomerangz – Interchangeable thong range – Sizes & Colours Video

Our patented range of thongs / flip flops is interchangeable which means you can mix and match your bases and straps in less than 30 seconds – no tools, no fuss! Different coloured bases and different coloured straps allows for multiple colour combinations.


The thongs will vary a few millimetres. It is best to measure your foot or a pair of old thongs from the centre 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.

The Boomerangz size range is based on the MENS 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 with the sizing charts below   🙂

Slim straps can be added to the corresponding base and vice versa.

  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             |   Aus Slim 4/5   |   235mm   |
  • US Slim 6                 |   Aus Slim 6       |      247mm   |
  • US Slim 7/8             |   Aus Slim 7/8   |      260mm   |
  • US Slim 9                 |   Aus Slim 9       |      272mm   |
  • US Regular 7/8       |   Aus Reg / Unisex  7/8       |   260mm   |
  • US Regular 9           |   Aus Reg / Unisex  9           |   272mm   |
  • US Regular 10/11   |   Aus Reg / Unisex  10/11   |   286mm   |
  • US Regular 12         |   Aus Reg / Unisex  12         |   298mm   |
  • US Regular 13/14   |   Aus Reg / Unisex  13/14   |   308mm   |


All orders are registered and come with a tracking number.

Depending on your location, Registered Post will usually take 2-5 days.
Express Post will usually take 1-2 days.
Remote areas may take longer.

  • Orders $0 – $40 = $7.95 – Standard Trackable Delivery
  • Orders $40 – $80 = $9.95 – Standard Trackable Delivery
  • Orders $0 – $80 = $11.95 – Express Trackable Delivery
  • Orders $80 and over = FREE EXPRESS Delivery – Express & Trackable

Partner company products may be sent with a different postal or courier service.

Can’t wait until pay day? Use After Pay!

*Within Australia ONLY

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 thongs! – Jess

These thongs 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 thongs!
Great thongs, 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 thongs and the ease of changing the straps. I am now looking forward to buying another pair soon. – Jim