Update to my last post: the Timberland Boot Kit helped a bit, with a few cycles of brushing and cleaner and then conditioner. But what ultimately helped most was dried bread. :
Here's How To Clean Timberland Boots - CHO | The Journal
How to Clean Timberland Boots (with Pictures) - wikiHow
Timberland - Accessories - Boot Kit - Nohble
Amazon.com: Timberland Boot Kit Shoe Care Product Set, No No Color, One Size Regular US : Clothing, Shoes & Jewelry
Here's How To Clean Timberland Boots - CHO | The Journal
Amazon.com: Timberland Boot Kit Shoe Care Product Set, No No Color, One Size Regular US : Clothing, Shoes & Jewelry
TIMBERLAND - Boot cleaning kit - GH-Stores.com
Tried to use a leather cleaning kit to clean off nubuck leather Timberlands… is there any hope to save these? : r/Boots
How to Clean Timberland Boots (with Pictures) - wikiHow
How to Clean Timberland Boots (with Pictures) - wikiHow
Timberland Product Care Travel Kit | Journeys
How to Clean and Restore Timberlands!! Make Suede Boots Sexy! DIY - YouTube
Dry Cleaning Kit for Suede, Nubuck & Canvas | Timberland US
How to Clean My Timberland Boots | Timberland - YouTube
Timberland Boot Kit – DTLR
Timberland Shoe Care Leather and Suede Protector Dry Cleaning Kit Suede Brush | eBay
:max_bytes(150000):strip_icc()/how-to-clean-desert-combat-boots-2145726-7-b78e32f425ad49c4bf1bbce354bb028c.jpg "How to Clean Suede Combat Boots")
How to Clean Suede Combat Boots
Timberland Boot Cleaner and Care Kit - ShopStyle Shoe Storage
3 TIMBERLAND Saving Hacks - (Tested) - How to Clean Timberlands Boots - YouTube
How to Clean Timberland Boots with Vinegar: An Easy 2023 Guide
How to Clean Timberland Boots (with Pictures) - wikiHow
TIMBERLAND BOOT KIT - TB0A1HDZ000 – The Walk In Closet
Timberland Boot Kit – Fresh Rags FL
 "Timberland Boot Cleaner and Care Kit| Finish Line")