Amazon offers its Amazon Prime members these Sorel Men's Falcon Ridge Slippers
in Bark for $23.98
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $4.98.) That's the lowest total price we could find by $9. They're available in sizes 8 to 11, although not in all size/color combinations.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that there is currently a wait list for the Amazon Mom program.)