Caitlin Martell-Lewis (played by Sydney Park) on Pretty Little Liars The Perfectionists on Freeform was spotted wearing this red argyle sweater on PLL The Perfectionists on episode 'Sex, Lies and Alibis' (1x02) in Mar 2019. Caitlin's Sweater is the Dex Argyle Sweater by Rag & Bone.