People simply toss hoodies in a drawer and put them aside. Not that they're not fine for a basic that costs so little. Not so fine here, as fabric weight and drape sort of define the purpose anyway, and poor storage habits slowly but surely do their job.

Folding vs Hanging and why it is not a simple question

While hanging may appear the obvious “better” option, it isn't always the case for heavier hoodies. The heavy brushed  rick owens in fact, become misshapen at the shoulders, particularly if it is a thin wire fleece supported incorrectly, and left on a hanger for months. Folding is one way to sidestep that problem, with the introduction of crease lines if one is not careful in folding. Neither is perfect. Choose by the weight of the piece and the amount of time it will sit before you wear it again.

If You Do Hang It, Use a Proper Hanger

Avoid using wire hangers for anything but a light jersey item. The wide hanger spread weight over the shoulder seams rather than focusing it on two narrow points - the latter is what really gives the lumpy, stretched-out shoulder look with time. However, this is more relevant for drop-shoulder cuts, as the shoulder seam is already in an awkward position, and should not be accentuated by a stretch of another seam.

Folding without making permanent creases

For the folding: Do not fold on exactly the same line every time. Repeatedly folding and unfolding creases at the same place, over and over again, will form semi-permanent creases, particularly in heavier fleece. This is avoided by making a non-uniform fold or by rolling the pieces rather than flat-folding, when they are used frequently. It's a little picky, but over a year of storage, the five seconds were worth it.

The amount of space in a drawer and how much space is taken up

Over time, too many hoodies in one drawer will flatten the bottom of the stack and even for structured hoodies, the pile will flatten over time. When a drawer really is too full, it's often time to replace at least some of your heavier items with hanging storage—even if they have some of the drawbacks listed above.

The moisture content and fabric conditions

While all fabrics don't fare well in damp storage areas, basements in particular, heavier fleece will retain moisture for a longer period of time than lighter jersey and therefore is more susceptible to a musty odor or in extreme instances actual mildew when exposed to moisture for prolonged periods. A closet with less room, but no water is better than a wet basement with more room!

A variety of plant fibers, such as those from cedar, moths, and natural fibers

In long-term storage, a problem of concern is moths if any of your pieces contain any other natural fibres other than cotton, such as wool-blend. Do not use cedar or lavender blocks/sachets, they work! Doing this is worth while if you're not wearing it in rotation, but are storing something that's adjacent to wool.

Seasonal Storage Specifically

For items that are going into long-term storage, clean and dry them thoroughly before packing for the summer. Any leftover body oil or water that has been left in fabric for months can lead to a musty odor and pest issues that are easily prevented, and much harder to rectify after the fact.