For a limited time, spend $100 on men’s clothing at Amazon and get 20% off. The eligible clothing can be found on this page. Use the promo code DAD20CLT. The discount is good on for items sold and shipped by Amazon, and applies only to items found through the above link. You can shop for T-shirts, polos, button-down shirts, dress shirts, jeans, pants and shorts. Items are eligible for Amazon Prime, which gives you free two-day shipping. You can get a FREE 30-day trial of Amazon Prime. Besides the free two-day shipping, Amazon Prime also offers free video streaming and Kindle book rentals. The 20% discount ends June 15th, but Amazon might end it sooner, according to the fine print.