Jacaru Hat Filler (2-Pack)
Jacaru Hat Filler (2-Pack)
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The Jacaru 6518 Hat Filler is a pack of two self adhesive hat fillers that can be added to the inside of the hat to protect the leather from sweat marks or it can be used to reduce the size of a hat by one size. It is made from a comfortable Sponge & Flannel material and it can be placed around the inside of your hat to get the perfect fit.
Features
Features
Shipping and Returns
Shipping and Returns
Free Standard Shipping over $100
$9.95 Standard Shipping (2-8 days)
$15 Express Shipping (1-4 days)
All standard orders are dispatched from McLaren Vale, South Australia, within 1-2 business days.
30 Day Easy Returns and Exchanges

Size & Fit Guide: Jacaru
Jacaru Hat Size Guide
Using a soft measuring tape, measure the circumference of your head just above your ears and refer to the size guide below.
If you are between sizes, most customers choose the larger size.
| Jacaru Size | Code | Centimetres | Inches | US Hat Size |
|---|---|---|---|---|
| Child | C | 52cm | 20 1/2 inch | 6 1/2 |
| Small | S | 54.5 / 55cm | 21 3/4 inch | 6 7/8 |
| Medium | M | 56 / 57cm | 22 1/2 inch | 7 1/8 |
| Medium / Large | M/L | 58cm | 22 3/4 inch | 7 1/4 |
| Large | L | 59 / 59.5cm | 23 1/2 inch | 7 1/2 |
| Extra Large | XL | 60 / 61cm | 24 3/8 inch | 7 5/8 |
| Extra Extra Large | XXL | 62 / 63cm | 25 1/8 inch | 8 |
Jacaru Fit Notes
| Style | Fit Notes |
|---|---|
| Leather Hats | Structured fit that softens and shapes naturally with wear. |
| Wool Hats | Comfortable classic fit with a softer feel. |
| Straw Hats | Lightweight breathable fit ideal for warmer weather. |
How to measure
- Head Circumference: Measure around your head just above your ears using a soft measuring tape.
- If you are between sizes, most customers choose the larger size.
- You can also use a hat band or sizing reducer inside the hat for a firmer fit if needed.
Please note size and fit can vary slightly depending on the hat style, leather and material.
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