The Complete Letterman Jacket Care Guide: Clean, Protect & Keep It Looking New

Your letterman jacket isn’t just outerwear — it’s a statement. Whether it holds school memories or just your personal style, it deserves proper care. This guide covers everything your competitor doesn’t: material-by-material care, storage secrets, seasonal tips, product recommendations, and more.

Table of Contents

• Know Your Jacket First (Materials Matter)
• Spot Cleaning — The Right Way
• Deep Cleaning: Step-by-Step
• Caring for Wool Body — Do’s & Don’ts
• Caring for Leather Sleeves — Do’s & Don’ts
• Drying Your Jacket Without Ruining It
• Steam Cleaning for a Quick Refresh
• How to Remove Specific Stains
• Long-Term Storage Tips
• Seasonal Care Routine
• Care Myths — Busted
• Product Recommendations
• FAQs

Know Your Jacket First — Materials Matter

Most letterman jackets are made of two different materials: a wool body and leather or faux leather sleeves. Each requires a completely different approach. Treating them the same way is the #1 mistake people make.

Before doing anything, check the care label inside your jacket. If it says dry clean only — respect that.

Spot Cleaning — The Right Way

For small marks or surface stains, always start with spot cleaning before attempting a full wash.

What you need:

• Mild detergent (wool-safe or baby shampoo)
• Soft white cloth (avoid colored cloths — dye transfer is real)
• Cold water
• Dry paper towel

Steps:

1. Blot the stain with a dry paper towel — never rub, always blot
2. Mix a few drops of mild detergent with cold water
3. Dip a soft cloth, wring it out well
4. Gently dab in circular motions from the outside of the stain inward
5. Rinse with a clean damp cloth
6. Air dry immediately — don’t let moisture sit

Deep Cleaning: Full Step-by-Step

Only deep clean when absolutely necessary. Frequent washing shortens your jacket’s life.

Hand Wash Method (Safest):

1. Fill a clean basin with cold water
2. Add 1 tbsp of gentle, pH-neutral detergent
3. Turn your jacket inside out
4. Submerge and gently swish — no scrubbing, no twisting
5. Let it soak for 20–30 minutes max
6. Drain and rinse thoroughly with cold water
7. Press gently to remove water — never wring or twist
8. Hang on a wide-shoulder hanger to air dry

When to Go to a Dry Cleaner:

• Jacket is heavily soiled
• Leather sleeves have deep stains
• You’re not confident doing it at home

Always tell the dry cleaner it’s a wool-leather combination garment.

Caring for the Wool Body

Wool is durable but sensitive to heat, agitation, and harsh chemicals.

Do:

• Use wool-safe or lanolin detergent
• Wash in cold water only
• Brush with a soft clothes brush after every few wears to remove surface dust and lint
• Store with cedar balls to repel moths

Don’t:

• Machine wash (ever)
• Use hot water — it shrinks wool permanently
• Tumble dry
• Iron directly on wool — use a pressing cloth

Caring for Leather Sleeves

Leather needs moisture to stay soft and crack-free. Neglect it, and it dries out, stiffens, and eventually cracks.

Do:

• Wipe down sleeves monthly with a damp cloth
• Apply a quality leather conditioner every 2–3 months
• Use a leather protector spray before the rainy season
• Store away from direct sunlight

Don’t:

• Use saddle soap or alcohol-based cleaners
• Soak leather in water
• Dry near heat (radiator, hair dryer, sunlight)
• Use regular fabric detergent on leather

Best conditioners to use: Leather Honey, Bickmore Bick 4, or any water-based leather conditioner.

Drying Your Jacket the Right Way

Drying is where most people ruin their jackets.

• Always air dry — lay flat or hang on a wide hanger
• Keep away from direct sunlight (fades colors and dries out leather)
• Keep away from radiators and heaters (shrinks wool, cracks leather)
• Allow at least 24–48 hours to fully dry before wearing or storing
• Stuff sleeves lightly with tissue paper while drying to maintain shape

Steam Cleaning for a Quick Refresh

Steam cleaning is your best friend between washes. It removes light odors, kills surface bacteria, and relaxes wrinkles without any moisture damage.

• Hold steamer 4–6 inches away from the fabric
• Use slow, downward strokes
• Never steam leather directly — keep distance or use a pressing cloth
• Let the jacket hang and air out for 30 minutes after steaming

How to Remove Specific Stains

Long-Term Storage Tips

Storing your jacket properly is just as important as cleaning it.

• Never store in plastic bags — leather needs to breathe
• Use a breathable garment bag (cotton or canvas)
• Store on a wide, padded hanger to maintain shoulder shape
• Keep in a cool, dark, dry place — humidity is the enemy
• Add cedar balls or blocks to repel moths and absorb moisture
• Condition leather sleeves before storing for the season

Seasonal Care Routine

Before Winter (Start of Season):

• Inspect for any damage or wear
• Condition leather sleeves
• Brush wool body
• Apply leather protector spray

After Winter (End of Season):

• Deep clean or take to dry cleaner
• Let fully dry before storing
• Condition leather again
• Store properly with cedar balls

Care Myths — Busted

Myth: Machine washing is fine on a gentle cycle. False. Even a gentle cycle agitates and stretches wool fibers and can crack leather sleeves. Hand wash or dry clean only.

Myth: You can iron out wrinkles directly. No. Direct iron heat scorches wool and destroys leather. Use steam only, or a pressing cloth on low heat.

Myth: Leather doesn’t need maintenance if it looks fine. Wrong. Leather dries out from the inside. By the time it looks cracked, it’s already too late. Condition regularly.

Myth: Sunlight drying is natural and safe. No. UV rays fade colors and dry out leather rapidly. Always dry in a shaded, ventilated space.

Myth: More detergent = cleaner jacket. False. Excess detergent is harder to rinse out and leaves residue that attracts more dirt.

Recommended Products

• Wool Wash: Woolite Delicates, The Laundress Wool & Cashmere Shampoo
• Leather Conditioner: Leather Honey, Bickmore Bick 4
• Leather Protector: Apple Brand Garde Rain & Stain Repellent
• Fabric Brush: Mason Pearson Clothes Brush
• Garment Bag: Whitmor Cotton Garment Bag
• Cedar Balls: Household Essentials Cedar Balls

13. FAQs

How often should I clean my letterman jacket? Spot clean as needed. Deep clean only once or twice a season, or when visibly soiled.

Can I use a washing machine? No. Machine washing damages wool fibers and can crack or warp leather sleeves. Always hand wash or dry clean.

How do I get rid of smell without washing? Hang in fresh air overnight. Use a fabric deodorizer spray or steam clean lightly.

How do I know if my leather needs conditioning? Do a simple test: put a small drop of water on the leather. If it absorbs quickly instead of beading up, the leather needs conditioning.

Can I use the same detergent on both wool and leather? No. Use a wool-safe detergent for the body and a leather-specific cleaner for the sleeves.

What if my jacket shrinks? Gently stretch it back into shape while still damp. Lay flat to dry. Avoid heat in future.

How do I remove creases from wool? Use a steamer or place a damp cloth over the area and press lightly with a cool iron.