Golf Tutorials

Can You Put a Golf Hat in the Washing Machine?

By Spencer Lanoue
July 24, 2025

That sweat-stained, slightly grimy golf hat on your passenger seat has been through a lot. Before you toss it in with your next load of laundry, let's talk about the right way to get it clean without destroying its shape and fit. This guide will walk you through everything you need to know, from identifying your hat's material to the exact steps for both machine and hand washing, so you can get your favorite cap back in game-ready condition.

To Machine Wash or Not to Machine Wash? That Is the Question

Here’s the short answer: Yes, you can often put a modern golf hat in the washing machine. However, it comes with some serious warnings. The washing machine can be a brutal environment for something as structured as a hat. The aggressive agitation can warp the crown, bend the brim, and cause the entire hat to lose that perfect shape you've spent dozens of rounds breaking in. The heat and harsh detergents can also cause colors to fade and fabrics to shrink, especially in older or more delicate caps.

Hand washing will always be the safest, most recommended method. It gives you complete control over the process, ensuring a gentle touch that preserves the hat's integrity. Think of it like chipping versus blasting a bunker shot - both can get the job done, but one offers far more finesse and a lower risk of disaster.

However, if you're set on the convenience of a machine, you need to do it correctly. The rest of this guide will focus on how to do it safely, but first, you have to play diagnostician and understand exactly what kind of hat you're dealing with.

Know Your Gear: A Golfer's Guide to Hat Materials and Construction

Just like you wouldn’t use a driver from the sand, you can't use the same cleaning method for every hat. The construction and material are the two biggest factors that determine how you should wash your cap. Before you do anything, take a minute to inspect your hat.

The Material Matters Most

  • Performance Fabrics (Polyester, Blends): The vast majority of modern golf hats from brands like Titleist, TaylorMade, and Nike are made from lightweight, sweat-wicking performance fabrics. These materials are durable, colorfast, and designed to handle moisture. They are the best candidates for a safe, careful machine wash.
  • Cotton and Twill: Another very common material, cotton is durable but can be prone to shrinking in high heat. If your hat is 100% cotton, you must use cold water without exception. It's often better to hand wash these to be entirely safe.
  • Wool: While less common in modern golf hats, some classic or premium caps are made from wool. Wool is a fantastic material, but it is extremely sensitive to heat and agitation. Never put a wool hat in the washing machine. Heat will cause the fibers to felt and shrink, permanently ruining it. Hand washing is the only option here.

The Infamous Brim Test: Cardboard vs. Plastic

This is arguably the most important element. For decades, hat brims (or bills) were made with a cardboard insert to give them their shape. As you can imagine, submerging cardboard in water turns it into a mushy, warped mess.

  • Old Hats (Pre-2000s): If you have a true vintage hat, it almost certainly has a cardboard brim. Do not submerge it in water. Gentle spot cleaning is your only safe bet.
  • Modern Hats: Thankfully, virtually all hats made in the last 20+ years use a sturdy, flexible plastic insert. These are built to withstand getting wet.

How to tell the difference? Do a simple bend test. A plastic brim will feel sturdy and will spring back to its shape easily. A cardboard brim feels stiffer, flimsier, and may even make a sight cracking and crinkling sound when flexed. If you tap on it, plastic has a light, solid sound, while cardboard sounds more dull and hollow. When in doubt, assume it’s cardboard and proceed with caution.

The Step-by-Step Guide to Safely Machine Washing Your Golf Hat

If you've determined your hat has a plastic brim and is made from a durable performance fabric or cotton blend, you can proceed with machine washing. Follow these steps precisely to protect it.

Step 1: Pre-Treat the Stains

The grossest part of a well-worn hat is the sweatband. These stains need to be addressed before the main wash. Create a simple paste using a small amount of mild, bleach-free laundry detergent and a little water. Using a soft-bristled brush (an old toothbrush is perfect), gently scrub the stained areas, paying close attention to the sweatband on the inside. Let it sit for about 15-20 minutes.

Step 2: Give Your Hat Some Armor

Never throw your hat directly into the washing drum to be battered by other clothes. You need to protect its shape. The best tool for the job is a plastic hat cage (also called a hat washer or baseball cap frame). This tool snaps around the hat, holding its form throughout the wash cycle. If you don't have one, placing the hat in a delicates laundry bag or even a tied-off pillowcase is a decent alternative, though it won't protect the shape as well as a dedicated cage.

Step 3: Set Your Machine Correctly

This is where many people go wrong. The settings are not suggestions, they're rules.

  • Cycle: Use the gentle or delicate cycle only.
  • Water Temperature: Use cold water. Never hot or warm. Cold water prevents shrinking and helps preserve the colors.
  • Detergent: Use a very small amount of mild, color-safe liquid detergent. Absolutely no chlorine bleach.

Step 4: Wash with a Light Load

Wash your hat with a small load of similar colored, lightweight items like t-shirts, socks, or athletic shorts. Do not wash it with heavy towels, jeans, or sweatshirts. A heavy, water-logged piece of denim can easily crush the crown of your hat, even inside a hat cage.

The Gold Standard: How to Hand Wash Your Golf Hat

For your most treasured hats, for wool hats, or for anyone who wants to be 100% safe, hand washing is the way to go. It’s gentle, effective, and only takes a few minutes of active work.

Step 1: Prep the Cleaning Area

Start with a clean sink, basin, or bucket. Give it a quick wash to make sure there's no leftover residue from other cleaning chemicals.

Step 2: Fill and Suds

Fill the sink with cool or lukewarm water. Add a small drop (a teaspoon or less) of mild, bleach-free detergent and swish the water around with your hand to create some light suds.

Step 3: Spot-Treat and Soak

Just like with machine a washing, use a soft brush and a bit of detergent to pre-treat the grimiest parts, especially that inner sweatband. Then, fully submerge the hat in the soapy water. Let it soak for at least 30 minutes, or up to a few hours for seriously dirty hats.

Step 4: Gently Clean

After it has soaked, use your hands to gently agitate the hat in the water. Use your soft brush to gently scrub any remaining problem areas. Focus on the fabric and avoid scrubbing any embroidered logos too aggressively, as you could snag the threads.

Step 5: Rinse Completely

Drain the soapy water and rinse the hat thoroughly under cool, running water. Gently squeeze the fabric (don’t wring or twist it!) to help work the soap out until the water runs clear and there are no suds left.

The Golden Rule: How to Dry Your Golf Hat Correctly

You can do everything right up to this point and still completely ruin your hat in the final step. Heed this warning: NEVER, EVER PUT YOUR HAT IN THE DRYER. The high heat from a machine dryer is the number one cause of ruined hats. It will shrink the fabric, warp the plastic brim into a permanent, awkward curve, and cook any remaining sweat stains into the material for good.

Here’s the right way to dry it:

  1. Gently pat the hat with a clean, light-colored towel to blot away as much excess water as you can. Don't be rough - just pat and press.
  2. Find a shape-holding object to place the hat on. This is vital for helping the crown keep its form as it dries. Excellent options include a large coffee can, a glass vase, a canister, or even just a tightly rolled-up towel stuffed inside.
  3. Place the hat on its form in a well-ventilated spot to air dry. Keep it out of direct sunlight, which can fade the colors.
  4. Be patient. It may take 24 hours or more for the hat to dry completely, especially around the thick fabric of the brim and sweatband. Let it dry fully before wearing it.

Final Thoughts

Cleaning your favorite golf hat is entirely doable as long as you respect its material and construction. While hand washing is the safest route, you can use a machine for most modern hats by using a hat cage, a delicate cycle with cold water, and most importantly, letting it air dry on a form to preserve its shape.

Keeping your gear clean and organized gives you one less thing to worry about on the course, so you can think clearly. In the same way, I was built to give you a clear mind for every shot. When you're standing over a tricky lie or deciding between clubs, I can analyze the situation - even from a photo you snap of your ball - and give you a smart, simple strategy. You get immediate, expert-level advice right on your phone, taking the guesswork out of course management. Feel more prepared for any shot with Caddie AI.

Spencer has been playing golf since he was a kid and has spent a lifetime chasing improvement. With over a decade of experience building successful tech products, he combined his love for golf and startups to create Caddie AI - the world's best AI golf app. Giving everyone an expert level coach in your pocket, available 24/7. His mission is simple: make world-class golf advice accessible to everyone, anytime.

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