1. The problem statement, all variables and given/known data Hi, Please help me to identify the materials required for a large travel suitcase and the properties which are required for it too. 2. Relevant equations 3. The attempt at a solution I was thinking of nylon as one of the materials for a travel suitcase. Properties required for material would be it should be light, the material should have high impact strength. Please help me out with other materials and other properties required and which would be the best one.