MUS:75折(运费有变贵)
https://www.mensunderwearstore.com/shop/sale-items/?sort=date&show=50
freshpair:75折以下(运费9.95美元)
http://www.freshpair.com/mens/on-sale.html
C-IN2官网:75折(运费已经提高到11点多美元)
http://www.c-in2.com/retail/catalog/list/styles
andrewchristian:7折很久没买了,(不知道运费状况)
http://www.andrewchristian.com/index.php/new-styles.html