Can You Put Uggs in the Washer? Safe Cleaning Guide

If you are staring at a mud-splattered pair of sheepskin boots and asking yourself, "can you put Uggs in the washer?", the answer is a definitive no. Do not attempt it. Machine washing is catastrophic for classic Uggs.

I have spent 20 years working as a textile scientist and dry cleaner. Every winter, customers bring me shrunken, misshapen boots with bald patches of fleece, hoping I can reverse the damage caused by a quick cycle in their washing machine. Once the structural bonds break down and the leather shrinks, the boots are ruined.

Machine washing saturates the double-faced sheepskin, strips out the protective natural oils, and dissolves the glues holding the sole construct together. Let us examine the exact science of why this happens and the proper, zero-risk method you must use to clean your footwear.

The Fabric Science: Why Water and Machines Destroy Shearling

To understand why a washing machine obliterates classic Uggs, we have to look at the structural biology and chemistry of Twin-face Sheepskin (also known as shearling).

While you might be accustomed to machine washing wool garments on a delicate cycle, boots combine wool with animal hides and synthetic adhesives, creating a highly sensitive composite item.

• The Leather Layers (Corium & Flesh Split): Twin-face sheepskin consists of suede leather on the outer facing and grown-on wool fleece on the interior. When fully submerged in a washing machine, the corium and flesh split (the structural dermal layers of the hide) absorb water rapidly. As the boots air dry, they suffer from asymmetrical shrinkage. This uneven contraction leaves the boots permanently warped, stiff, and visibly puckered.
• The Lanolin Shield: Sheep naturally secrete lanolin, a waxy, waterproofing lipid that coats the fleece and keeps the leather soft. Heavy-duty laundry detergents rely on anionic surfactants-highly alkaline cleansing agents. These surfactants aggressively emulsify and strip away the lanolin lipid barrier. Without lanolin, the wet sheepskin dries brittle, crusty, and prone to severe cracking.
• The Glues & Soles: The bottom of a classic Ugg boot consists of an Ethyl Vinyl Acetate (EVA) Sole. The boot upper is secured to this sole using water-soluble protein glues. Prolonged soaking in a wash drum literally dissolves the adhesive, leading to total sole delamination. As a secondary failure point, the polyamide-binding thread used in the stitching shrinks at a completely different rate than the wet leather, causing structural tension that tears the seams.

Safe vs. Catastrophic Cleaning Methods for Uggs

Review this chart before applying any heat or moisture to your boots.

How to Clean Uggs Safely (The 7-Step Protocol)

Before you begin cleaning, always perform The "Spoon Test" for Water Absorption. Drip exactly one drop of water (about 0.05ml) onto an inconspicuous area near the heel. If the water beads up and rolls off, your factory hydrophobic suede protection is intact. If the droplet absorbs instantly leaving a dark mark, the suede is vulnerable to water rings, and you must proceed with strict precision.

Unlike washing soft merino wool shoes that can survive mild agitation, sheepskin boots require a manual, topical approach.

Step 1: Dry Brushing to Remove Loose Soil

Never introduce water to dry mud. Use a soft crepe brush or a nylon-loop suede brush to gently sweep away loose dirt and dust. Always brush in a single, consistent direction. Scrubbing vigorously back-and-forth tears the delicate micro-fibers of the suede nap, creating permanent bald tracks.

Step 2: Spot-Treat Stains with a Suede Eraser

For dried-on scuffs, asphalt marks, or heavy dirt patches, rub a crumbly, vulcanized rubber sheepskin/suede eraser directly over the stain. The friction from the eraser lifts dry particulate soil out of the hide fibers without requiring a single drop of liquid.

Step 3: Dampen the Surface (Do Not Saturate)

Moisten a clean sponge or a microfiber cloth with cold water. The water must be strictly below 30°C (86°F) to prevent the collagen proteins in the leather from contracting. Wring the sponge out tightly until it is barely damp to the touch. Lightly swipe the exterior of the entire boot.

Critical Warning: You must dampen the entire boot evenly. Spot-wetting just the toe or the heel creates a permanent, dark water-ring outline as the leather dries.

Step 4: Apply a pH-Neutral Suede Shampoo

Apply one small drop of specialized, pH-neutral suede shampoo to your damp sponge. Suede shampoos are formulated at pH 4.5–5.5 to match the natural acidic pH of processed animal hides. Gently work the shampoo into the surface dirt using light, circular motions.

Critical Warning: Avoid standard laundry detergents containing non-ionic surfactants or zymocellular (enzyme) cleaners. Protease enzymes are designed to break down biological stains, and they will literally digest the protein structure of your sheepskin.

Step 5: Rinse and Lift Residue

Rinse your sponge in clean, cold water and wring it out completely. Wipe down the boots to pull the soap residue out of the nap. Never run the boots directly under a faucet.

Step 6: Stuff the Boots for Structural Drying

To guarantee the boots dry in their correct shape, stuff them firmly with unprinted white butcher paper or simple white tissue paper. Pack the toe box tightly to prevent asymmetrical shrinkage.

Critical Warning: Never use newspaper. The acidic newsprint ink will migrate through the wet fleece lining, permanently staining the interior wool a dirty gray.

Step 7: Slow-Dry and Groom the Nap

Allow the stuffed boots to air-dry in a cool, well-ventilated room for 24 to 48 hours. Keep them far away from direct sunlight, radiators, or hairdryers. High heat cooks wet collagen into a hard, non-pliable "boardy" texture. Once the boots are 100% dry, use your nylon-loop suede brush to sweep the nap in one direction, restoring its soft, velvety loft.

Laundry Lab Pro-Tips & Prevention

Preventing Salt Efflorescence: If you wear your boots through winter slush, you will likely see a crusty white line form as they dry. This is salt efflorescence-road salts migrating out of the leather. To fix this, mix 1/2 cup (120ml) of cold water with 1/2 cup (120ml) of distilled white vinegar. Dab the solution onto the salt lines with a damp cloth before the boots fully dry. The acetic acid neutralizes the alkaline calcium carbonate found in hard winter salts, preventing irreversible leather burn.

$$\ce{CaCO3 + 2CH3COOH -> Ca(CH3COO)2 + H2O + CO2^}$$

Avoid Deliquescence in Storage: Sheepskin physically absorbs moisture from humid ambient air, a scientific process called deliquescence. Storing boots in damp closets or airtight plastic tubs traps this moisture, causing the interior wool to grow sour-smelling mildew. Always store your dry boots in a breathable cotton shoe bag. If you collect multiple sheepskin items, review our comprehensive washing sheepskin items manual to properly manage long-term closet storage.

Reapply Hydrophobic Suede Protectant: Cleaning your boots removes surface dirt but also degrades the factory waterproof coating. After every wet cleaning, take the boots outside and spray them down with an aerosolized hydrophobic protectant spray formulated specifically for suede. Allow them to cure for 24 hours before wearing them in wet weather.

Frequently Asked Questions

Can I dry clean my Uggs?

Yes, but you must take them to a professional dry cleaner who operates dedicated leather and suede machinery. Standard dry cleaning solvents used for normal clothes strip the natural lanolin oils from the hide, leaving the boots hard and brittle.

How do I deodorize the interior wool fleece?

Never pour water inside the boot. Instead, sprinkle 2 tablespoons (30g) of plain baking soda ($\ce{NaHCO3}$) directly into the dry boot interior. Shake it around to coat the fleece, let it sit overnight to absorb acidic foot odors, and vacuum it out with a clean hose attachment.

What should I do if my Uggs got soaked in the rain?

Do not panic and do not put them near a radiator. Immediately stuff the interior tightly with unprinted paper towels to absorb the standing water from the inside out. Let them air dry slowly in a cool room for 48 hours, then brush the suede nap vigorously once completely dry.