What matters
Poshmark Listing Photo dimensions at a glance
Poshmark listings display in a square grid at 1200×1200. The cover photo competes directly with hundreds of other listings in search and feed results.
Poshmark is visual-first social commerce. A clear, bright cover photo is the single biggest factor in whether shoppers tap on your listing.
Dark, cluttered, or off-ratio photos look amateur in the grid and get scrolled past. Poshmark's algorithm may also favor better-quality images.