The lightest shoe in our collection – with the same premium cushioning and performance. The fully collapsible upper and no-slip, kick-down heel make it the ultimate packable summer travel shoe. Sun’s out, On's out. The Cloud 5 Coast is the lightweight shoe made for minimalist packers. Perfect for stuffing into your cabin bag, it's packable without compromising comfort and performance. Plus, an antimicrobial foot bed allows for barefoot wear, so you can leave the socks at home.