Bests & Worsts Reviews from Amazon

I bought 10 pairs of these Calvin Klein boxers in blue. I washed them according to the instructions printed on the inside of them. After a month and a half the elastics in the waist band started to fray and the waist band lost its shape and elasticity. I have bought the exact same model of underwear from Calvin Klein previously and have never experienced this problem. Makes me weary about the authenticity of these boxers. I'm very disappointed in the quality.