When you’re looking at materials, understand what the function is. If we’re looking at a sportswear shoe, are we looking to ensure that there is a four-way stretch? Then we have to look at what that means in terms of our manufacturing partners to deliver that.
Is a four-way stretch going to influence the dyeability of the fabric? Is the dyeability of the fabric going to influence the tensile strength? Is that going to influence any sort of friction on the wearer’s foot?
These things all start from a material selection standpoint.
If it’s a sports shoe, do we want it to be moisture-wicking? Do we want it to take water away from the wearer’s foot during activity?
If it’s a boot, do we want to make sure that it’s wipeable? If it’s faux leather, real leather, or any other mixed material, are we going to ensure that mechanical finishes can be applied to it?
For example, a common material used in faux leather footwear is PU, which is polyurethane. It’s important for polyurethane that it passes stretch, heat, and temperature testing. Also, what is the dyeability of that fabric?
When we’re looking at materials, understand the purpose of your footwear. Is it for formal or creative purposes? Is it going to be able to reach the design aesthetic that you’re looking for?
Ensure that your material selection can be dyed, finished, and manufactured to your liking. Also, make sure it has a great hand feel and colorfastness.
These are all things to consider when selecting your materials.