Amazon.com has ExOfficio Men’s Give-N-Go Boxer Brief (Various Sizes, Black/Charcoal) on sale for $12.70 – $13.59. Shipping is free w/ Prime or on $25+ orders
Available Sizes:
Small in Black $12.70
Large in Charcoal $13.19
X-Large in Charcoal $13.59
Edit: price drop further after posting.