A throwback surprise for 80s and 90s fashionistas. >> Is it giving preppy 1997 because that's the year I graduated >> with Costco shoppers discovering the return of a spree sweatshirts. >> It was like a Gen X convention at my Costco after work today.>> My childhood was unlocked. Look what I found. The crew necks featuring the nostalgic brand's bright logo so popular they're now sold out on Costco's website.It's the latest trend in revamped childhood favorites cashing in. >> 1996. It was a year when your bed ...