• Charcoal Black cap insert with SweatHawg headwear label on a white background
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Cap Sweat Liner — Single-Layer Hat Insert

Cap Sweat Liner — Single-Layer Hat Insert

Turn most hats into a no-drip zone. The Cap Insert keeps sweat out of your eyes, off your glasses, and protects your favorite hats from stains.

$21.99
$21.99
Sale Sold out
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Product Details

The Cap Insert transforms your favorite hats into powerful sweat-stoppers. Using SweatHawg’s tech-fabric system, it gulps sweat before it drips, then wicks and evaporates it for lasting cooling comfort. Slim, lightweight, and nearly invisible once in place, it protects your hats from stains while keeping your eyes clear and your focus sharp—on the trail, on the course, or on the job.

Benefits

TECH-FABRIC SYSTEM (ABSORB + WICK) — Hyper-absorbent rayon (from bamboo) core gulps sweat, while the outer mesh wicks and evaporates fast.

STOPS DRIPS & STINGING EYES — Blocks sweat before it hits your face or glasses.

PROTECTS YOUR HATS — Prevents sweat stains and salt rings in caps, visors, runner hats, bucket/boonie hats, and more.

LOW-PROFILE FIT — Slides behind most hat sweatbands without changing the fit.

RUN-READY COMFORT — Smooth edges, no Velcro®, snaps, or glue; featherweight feel for long runs and hot days.

WASHABLE & REUSABLE — Machine wash, air dry, repeat. Built to outlast cheap foam strips.

MADE IN THE USA — Hand-sewn in Oregon with small-batch quality.

How to Use

1. Lift your hat’s internal sweatband.

2. Tuck the insert across the front brow (temple-to-temple).

3. Smooth flat → cap on → go.

Tip: Adjust curve to fit higher-crown trucker caps or low-profile runner caps.

Best For: Running (performance caps), golf, yardwork, landscaping, gardening, hiking, bucket/boonie hats for sun protection, coaching, kitchen heat, and everyday wear in heat & humidity.

Materials & Care

Fit: Designed to fit most hats with built-in sweatbands (ballcaps, runner caps, trucker hats, visors, bucket/boonie hats, cowboy hats). Not intended for hard hats or helmets.

Materials: Rayon (from bamboo) absorbent felt (interior) + technical wicking mesh (exterior).

Care: Machine wash cold, air dry. No fabric softener or bleach.

Origin: Hand-sewn in Oregon, USA.

Warranty Info

Most effective sweat managing headwear, or your money back.

View full details

Performance Backed

Handsewn in the USA

Quick-Dry Tech

No-Drip Guarantee

Real sweat control

Every SweatHawg product combines an ultra-absorbent rayon felt core with a quick-wicking bamboo-polyester shell.  Real sweat control means no burning eyes, no smeared glasses–comfortable, clear focus from start to finish.

Max Absorption

12x its weight in water

Quick-Wicking Shell

Moves moisture away from skin

Machine Washable

Easy to clean, never funky

Made in the USA

Built tough, no shortcuts

Forget Sweat

  • SweatHawg headwear collects, disperse and evaporates sweat

  • Stay clear, focused and comfortable

  • Handsewn in the USA

  • Designed for super sweaters

“I stayed both cool and dry. No sweat in my eyes and no fogged glasses. Works just great! Nice job. I scored two goals… because I could see! Lol. You guys rock!”

JORDAN, VERIFIED HOCKEY PLAYER

“Concrete cutter for 24 years—this is the best tool I use daily. Sweat never blurs my glasses now.”

Michael S.

Gardening in heat? My old hat would be drippy within minutes. With the SweatHawg Cap Insert X2, soaked—but not in my eyes. Game-changer

GARDENING ENTHUSIAST

"This band did not allow any sweat to run down into my eyes or onto my glasses."

VERIFIED BUYER

Manage sweat on the go. Forget sweat, go drip-free!

  • Handsewn in the USA

  • No-Drip Guarantee

  • Performance Backed

  • Quick-Dry Tech

  • 10 Years Sweat-Free

  • Free shipping for $60+

Frequently Asked Questions

How do I care for my SweatHawg?

We recommend hand or machine washing, warm or cool water. No fabric softener please, it clogs the absorbent layer. Dry cool, or hang dry. Best not to wring it out, rather squeeze excess moisture out or roll it up in a towel. When washing a headband, wash closed and be sure the hooks are embedded in the loops. Exposed unsecured velcro hooks will snag delicate fabrics.