These are mandatory shipping enclosures used for transporting human remains—especially by air cargo—to comply with airline, TSA, IATA, and international standards. They protect the remains, contain moisture, and ensure respectful, secure handling throughout transportation. Key Characteristics: heavy-duty corrugated outer shell with reinforced sides, plywood or laminated wood base designed to support the full weight of a casket, leak-resistant or absorbent lining, full wrap-around lid that conceals the casket from view, strapping system (nylon bands, metal clips, or integrated locking strips), ventilation openings (per airline specification). Lynch Supply has many different styles.