What are the affects of internal duplicate content?

I am currently creating a clothing shop with some similar products that each have a different webpage. Due to their similarity (for example, two designs of hoodies use the same hoodie type), my product descriptions are essentially verbatim (minus a paragraph here and there).

My question is: does this near-duplicate internal content hurt my webpage’s SEO? Is there an optimal way to write product descriptions when the products are extremely similar?