Mens Underwear Store
Details: Sign up for their Boxer Bucks program and save 10% on repeat purchases
C-IN2
Details: Get up to 70% Off Clearance Products
Mens Worx
Details: Get Up to $18 Off Select Tanks
BANGLADS.COM
Details: 20% Off. Ends 12/8/12
ABC Underwear
Details: Get 30-70% Off Clearance Items
Skiviez
Details: Discount 10%
ethika
Details: Get Free US Shipping on Orders Over $50
Erogenos
Details: 25% off thru 2/10/13
Mensuas
Details: 15% Off Any Order Over $25. Ends 10/31/2012
manpacks.com
Details: $5 account credit
Baskit
Details: Save up to £49 on Special Offers
Slix
Details: 15% off. Unknown when it expires.
Croota
Details: 7% Off Croota Blue Tang 01 Hipster Contours
His Trunks
Details: Spend over $25 and get free shipping within the US. Spend $50 or more and get free shipping outside the US.
IwantPants
Details: 50% Off Kustom Women's Flip Flop Bunchie Black + Free Royal Mail Second Class Shipping on all orders to UK