It doesn't matter what color or brand. Suede sneakers are in.Valentina Frugiuele/Getty ImagesSuede sneakers are the menswear shoe of the summer this year.Fans say the soft material elevates casual outfits and adds a retro feel to every look.Stylist Alexandra Ballard also said the shoes have a European vibe that signals elegance.This is a sign to give your Birkenstocks and Air Force 1s a break this summer.They're footwear staples for a reason, of…