Find 7.5 x 10.5 poly mailers made for everyday shipping needs. Lightweight, waterproof, and tear-resistant with strong seams, a secure self-sealing strip, and a smooth label-friendly surface. Pack tees, baby clothes, cosmetics, small books, and accessories with quick self-sealing that keeps orders protected and costs under control.
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A 7.5x10.5 poly mailer is 7.5 inches wide by 10.5 inches long. In metric, that’s about 19.1 cm x 26.7 cm.
Typically small apparel and soft goods: a thin adult tee, baby clothing, underwear, socks, lightweight accessories, and small non-fragile items that don’t need a box.
It depends on the supplier. Many list width x length for the body, and the flap is extra, but some listings use outside dimensions. The safe move is to check whether the product spec calls out “usable” or “inside” dimensions and whether flap length is listed separately.
If you’re shipping single, thin items and you want a tighter packout, 7.5x10.5 is fine. If you’re seeing seal stress, returns from overstuffing, or you’re packing thicker tees, larger sizes, or small bundles, 9x12 is usually the better standard.
