Fleet feet - you can buy and return on line and if no store nearby - ok just reading - they changed their policy in March - 30 days - so check b4 buying.
I didn’t realize they changed it. They were known for the generous return so it’s a big shift.
REI - one year - even worn. 90 days if not a member. I just read on line.
The intent isn’t you wear them out - that’d be wrong but I’ve seen people return clearly after months. And they have a section in store where they sell new shoes.