Ship smarter with SMARTYnas poly mailers—durable opaque plastic shipping bags for fast apparel fulfilment. This poly mailers multi size pack includes 30 mailing bags for clothes in three core formats: 8×12 in for leggings kidswear and accessories poly mailers 10×13 in for T-shirts and pants and large poly mailers 14×19 in for hoodies sets and returns. Right-sizing each parcel reduces DIM weight saves shelf space and speeds pick-pack compared with bulky cartons. Stronger parcels — Multi-layer LDPE with reinforced sides resists tears splits and rain splash. The hot-melt self-seal locks fast and stays closed; matte grey hides contents takes marker or thermal labels and scans reliably across USPS UPS and FedEx (ideal USPS shipping bags). Water-resistant film helps garments arrive neat and. Built for clothing — Use these plastic mailers for clothing as clothing shipping bags / plastic mailing bags / mailers poly bags when boxes are overkill. Not padded—no bubble lining; add inner w