Kindle Paperwhite 11th Generation 2021 Signature Edition Clear Case

eBay - vekiin5627

Purely clear and transparent material, Simple, minimalist soft-shell design, Covers the back and sides of the Kindle, No front cover or hand strap, Allows full visibility of the Kindle's back, Form factor and dimensions consistent with a Kindle Paperwhite case, Material appears to be flexible TPU/silicone

Dteck Kindle Paperwhite 10th Generation 2018 Release Case

Walmart - Dteck Inc

Clear back material matches, Black edges/frame matches, Designed for Kindle Paperwhite

Clear Case For 6.8" Kindle Paperwhite (11th Generation-2021) Black

eBay

Clear back material matches exactly, Black edges/frame matches exactly, Overall simple form factor and protective design for a Kindle Paperwhite matches, Absence of a kickstand or other complex features matches the visible simplicity of the case in the source frame