Amazon offers Prime members this Women's Panties Variety 8-Pack
for $29.50. Coupon code "BF8PANTY" cuts it to $14.75
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise shipping adds $5.48.) That's $1.84 per pair and the lowest total price we could find for this quantity of similar panties by $14. They're available in sizes M through 3XL.