Cleaning Stretch Sock Uppers
Soft, porous foam-family uppers — Sock Darts, ACG booties, some training silhouettes. They don't tolerate aggressive cleaning. Stick to a damp cloth, mild soap, and air drying. Avoid solvents and direct heat.
Overview
How often
Rinse or spot clean roughly every 30 wears, sooner after mud or a spill. Freshen the inside with baking soda when odor builds.
Materials covered
Neoprene, Molded foam upper
What you'll need
- Dawn Ultra Dish Soap (DIY Cleaner)Foam Runner cleaner (a few drops in water)
- Microfiber Cleaning Cloths (multi-pack)Drying
Picked for the material, not paid for. Test anything new on a hidden spot first.
Step by step
Step 1: Foam Runner: rinse under running water
Garden hose or kitchen sink, no problem. Most shoes can't take this; Foam Runner can.
Step 2: Brush the pores out
The Foam Runner's holes are aesthetic but they trap dirt. Soft brush + soapy water gets it out.
Step 3: Avoid machine washing
Even though it's one piece of foam, machine agitation and dryer heat can warp it. Hand-wash and air-dry only.
Step 4: Deep stains (red wine, indigo)
Magic Eraser works on foam but lightens the color permanently in that spot. Test first.
Step 5: Air dry only
Direct sun can warp foam. Dry in the shade or indoors.
Step 6: Neoprene booties: spot clean
Damp microfiber + Jason Markk Premium cleaner. Light strokes, don't soak.
Step 7: Neoprene odor
Sprinkle baking soda inside, leave overnight, brush out. Repeat as needed.
What to avoid
- Machine washing or the dryer
- Drying in direct sun or near heat
- Solvents or harsh cleaners on neoprene
- Stretching neoprene booties while cleaning
Watch for
- Neoprene stretching. The snug fit is gone for good; the pair still works for casual wear.
By material
The routine above, adjusted for each material it covers.
Neoprene
Wipe and spot clean only. Don't stretch it. Stretched-out booties no longer hug the foot — on the AJ7 the bootie usually gives out before the leather does.
Molded foam upper
The one upper you can safely rinse under running water. A few drops of dish soap in water and a soft brush is the go-to method. Air dry. Algae-blend foam colorways are a little less UV-resistant.
Between wears
- Foam runner storage. Cool, dry, out of direct sun. No special needs.
- Neoprene shape. Store the shoe stuffed with paper to keep the bootie's shape. Compressed booties lose shape permanently.
Related guides
-
Cleaning Plastic Cages & Overlays
Clear plastic cages on Air Max 95s and 97s, hardware overlays on Jordans — these don't get dirty so much as damaged or yellowed by UV. Care is mostly prevention: store them away from direct sun, clean gently, and accept that some yellowing is part of the journey.
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Cleaning Foamposites
The Foamposite upper is a one-piece molded polyurethane shell — completely sealed and surprisingly easy to clean. A damp microfiber wipes off most marks. The risk areas are deep scuffs (almost impossible to repair) and the inner foam degrading over years of storage.
