The phrase "unfinished hem" refers to a garment or piece of fabric where the edge has not been sewn, creating a raw or frayed appearance. Full definition
I love frayed denim; the raw and unfinished hem gives the jeans such a cool - girl factor. (mywhitet.com)
/ red shoulder bag / summer nail polish / black leather watch / rose gold bracelet / wide leg unfinished hem jeans / black espadrilles (under $ 100!) (bayareafashionista.com)
Essential Knit Uneven Hem Skirt: Wrinkle - free knit skirt offers up an extra wide sweep with a fun and flirty unfinished hem. (metrostyle.com)