I pulled out shoes I haven’t worn all winter and found white fuzzy patches growing on the leather. What is this?

use in wet conditions. Regularly clean and condition leather shoes to remove dirt and moisture-attracting residues.
Using shoe trees can help maintain shape and absorb moisture. Additionally, storing shoes with desiccant packets or in breathable fabric bags can reduce humidity levels and discourage mold growth.
10. Smart Storage Hacks to Protect Shoes Through the Winter
Implementing smart storage solutions can protect shoes during winter. Opt for storage areas with stable temperatures and low humidity, such as closets with dehumidifiers. Consider using cedar shoe racks or inserts, which naturally repel moisture