Progressive Prepworks Thinstore Collapsible Prep/Storage Bowls with Lids - Set of 3

I need bowls that I can carry soup in without it spilling out the lid. Do the lids for these bowls fit tight and therefore make them leak proof?

Are these 100% food-grade Silicone?

Do they have weird odor or do they make the stored food smell weird? Thanks.

Are the thinstore ones better?