Poly Mailers

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Poly Mailer size and product compatibility guide

Poly Mailer Size & Product Compatibility Guide

8 sizes · Dimensions in inches (in) · cm approximations in parentheses

Size (W×L)Weight / DimensionTypical productsNotes & scenarios
6"×9"~15×23 cmSmall / ≤0.5 lb<5×8×1 inJewelry/Earrings/RingsHair clips/ScrunchiesPhone case (compact)Card holderKeychainsThread spoolsStickers/CardsLipstick/BalmEye shadow (small)Socks (1 pr)Underwear (1 pc)Slim walletSmallest; flat items; lowest cost
7.5"×10"~19×25 cmSmall / ≤0.8 lb<7×9×1 inPhone case (universal)Bra (1 pc, unpadded)Small scarf/BandanaGlasses (flexible)Face masks (1-3)Socks (2-3 prs)Thin beltStationery setHandkerchiefLight glovesSmall flat toyRoomier than 6×9
9"×12"~23×30 cmMed-small / ≤1 lb<8×11×1.5 inT-shirt (S/M, thin)Boxer briefs (2-3)Athletic teeKids top (3-8yrs)Thin apronBaby onesieiPad sleeve (<10")ScarfCap (folded)Socks (3-4 prs)Bag organizerMakeup brush setEyeglass caseSmall paperbackMost popular small; standard cross-border
10"×13"~25×33 cmMedium / ≤2 lb<9×12×2 inT-shirt (L/XL)Dress (lightweight)Joggers/SweatpantsHoodie (thin, S/M)Yoga pants/LeggingsSwimsuitKids jacket (thin)Laptop sleeve (13")Document folderA4 file (thin)Small plush toyCosmetic pouchPaperback bookMost used; covers most single apparel
12"×15.5"~30×39 cmMed-large / ≤3 lb<11×14×2 inHoodie (M/L)Jeans (lightweight)Outerwear (thin)Loungewear setKids outfit (2-pc)Laptop sleeve (14")Small throw blanketBeanie/Bucket hatTracksuit (thin)Folded toteBath towel (thin)Shawl/Oversized scarfDress shirt (folded)Large paperback/TextbookAdult single garments; thin home textiles
14.5"×19"~37×48 cmLarge / ≤4 lb<13×18×2.5 inWinter hoodie (L/XL)Light puffer jacketAdult jacket (mid-wt)Denim jacket (light)Windbreaker (thin)2-piece apparel setPillowcase (1 pc)Flat sheet (thin)Large toteBeach blanketPajama setSquishable plushYoga mat sleeveHeavier garments; upper limit for thick apparel
19"×24"~48×61 cmX-large / ≤8 lb<18×23×4 inDuvet cover (1 pc)Comforter (thin/compressed)Down pillow (1 pc)Multi-garment bundleWinter coat (compressed)Wedding dress (thin)Throw pillow (compressed)Storage bag (soft)Tent inner (ultralight)Toddler sleeping bagBathrobeBlanket (medium)Large home textiles; watch thickness
24"×24"~61×61 cmJumbo / ≤12 lb<23×23×5 inDuvet (queen, compressed)Large throw/Cushion padSheet set (2-3 pcs)Overcoat/ParkaStroller accessoryLarge plush (compressed)Small inflatableBedding set (thin)Soft storage binSleeping bag (summer)Tent flysheetLargest; bulky light goods; check waterproofing & weight

Orange tag = most common / recommended  |  Weights for compressed soft goods only  |  Not for liquids or fragile items

Book sizing: Pocket paperback → 9×12; Standard paperback → 10×13; Large paperback / Textbook (8.5"×11") → 12×15.5; Hardcover — not recommended, use rigid mailers or corrugated book boxes.