seaseadee
Contributor
I've used lightweight hard side suitcases which are like hard suitcases but have zippers instead of clasps. They can be pricy depending on the brand but they give you the best of both worlds:
http://www.ebags.com/category/luggage/f/hardside~lightweight
https://m.samsonite.com/products/2235723011
http://www.ebags.com/category/luggage/f/hardside~lightweight
https://m.samsonite.com/products/2235723011