12-Pack Baseball Cap Brim Inserts | Hat Shaper Support Liners

Keep Your Caps Looking Sharp with Premium Brim Support Inserts

Give your favourite hats a new lease of life with these 12-piece baseball cap brim inserts. Whether you're crafting a brand-new hat from scratch, restoring a beloved cap that's lost its shape, or simply adding extra structure to a wide-brimmed favourite, these lightweight yet sturdy inserts are the perfect DIY solution for hat enthusiasts of all kinds.

Made in Mainland China.

What's in the Pack?

• 12 inserts total — 6 white & 6 black, so you can match any hat lining
• Each insert measures 11 cm (4.53") wide × 14 cm (5.51") long × 0.2 cm (0.08") thick
• Slim profile fits neatly inside most wide-brimmed baseball caps without adding bulk

Key Features

• Durable Polyester & Flexible Plastic Construction: Lightweight, resilient material that adapts to the curve of your brim without cracking or deforming over time
• Long-Lasting Shape Retention: Keeps caps structured and upright, maintaining a clean, crisp look wear after wear
• Easy to Install: Simply slide the insert into your hat's brim — no tools, no adhesives, no fuss
• Versatile Two-Colour Set: Black and white options cover virtually every hat colour and lining style
• Unisex & Universal Fit: Designed to suit most standard wide-brim baseball caps for men and women
• Great for DIY & Restoration: Perfect for hat makers, crafters, and anyone refreshing an old favourite

Specifications

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Frequently Asked Questions

Q: Will these baseball cap brim inserts fit all hat sizes?

A: These cap shaper inserts are designed to fit most standard wide-brimmed baseball caps. Each insert measures 11 cm wide by 14 cm long and just 0.2 cm thick, making them slim enough to slide comfortably inside the brim of the majority of adult-sized caps. We recommend checking your hat's brim dimensions against these measurements before purchasing if you have an unusually sized cap.

Q: Can I trim or cut the inserts to fit a smaller brim?

A: Yes! The flexible plastic material is easy to cut with a pair of scissors, making these inserts ideal for DIY customisation. You can trim them to match the exact shape and size of your hat's brim for a perfect fit.

Q: Are the inserts reusable and washable?

A: Absolutely. The durable polyester-backed plastic inserts are built to last and can be removed, wiped clean, and reinserted as needed. They are not designed for machine washing, but a quick wipe with a damp cloth will keep them in great condition.

Q: Why are there two colours (black and white) in the pack?

A: The two-colour assortment ensures you always have the right insert for any hat lining. Use white inserts in light-coloured or light-lined caps and black inserts in darker caps so the support remains discreet and invisible from the outside.