Amazon.com: Wilkins Premium Midsole Marker for Customization Paint on Leather, Suede, Fabric and Soft Foam for 2-4 Pair of Shoes (Black) : Arts, Crafts & Sewing
NMD R1 Spectoo x NASA Low White Multi-Color for sale | eBay
adidas NMD R1 Chalk White (Women's) - FW6432 - US
ORIGINALAB Advanced Midsole Whitener Marker Boost White | ORIGINALFOOK
Sneaker Midsole Pen / Aging Pen Paint Marker - Sail (Air Jordan) by SNEAKERGUARD | Slickies | Reviews on Judge.me
Amazon.com: FACTORY LACED Shoe Whitener Bundle - White Shoe Cleaner Includes: White Touch Up, Premium Midsole Marker and Precise White Marker - Safe on Leather, Canvas, Vinyl, Nylon and More : Clothing,
For those curious about the oil sharpie on boost thing, here's a before/after. Not too shabby : r/Sneakers