I cannot stop you from horribly cropping my photos for my product thumbnails, no matter what settings I change. Please make it easier.
Better thumbnails. Just show the whole image if you have to.
Edwin Hamers commented
@Tamer. This can, currently, not be done in storefront settings or the woocommerce settings
Tamer Kilinc commented
This can be done in Woocommerce settings. You can Change the Product Image sizes and choose if Woocommerce should hard crop your Images. After changing settings you need to recreate your Thumbnails. This can be done by a Plug-in called ,,Recreate Thumbnails".