hey dude men's wally sox go blue, size 9 hey dude men's hey dude, wally sox fans slip-on. throw these in your suitcase and go. the flex and fold sole system allows you to pack and travel with ease. bi-component knit upper with soft cloth linings low-top, chukka-style forefoot vamp is wide, allowing total circulation of the toe area memory foam insole 2 lacing options, for an easy on and off ultra light outsole that is extremely flexible and foldable machine washable in cold water