We have some top tips to prevent hanger marks on clothes:
Choose the right hanger: Hanging a sweatshirt on a wire hanger will surely leave hanger marks. Instead, choose a wooden clothes hanger for heavier items.
No grooves: Avoid hangers with grooves for sweaters. These are specifically for clothes with thin straps.
Folding over hanging: Try folding clothes over the horizontal bar rather than hanging them by the shoulders.
Padding: If nothing else works, use padded hangers.