25 Pcs Insulated Mailer Metalized Envelopes 9" x 12" Pouch for Cold Shipping, Perishables & Lab Samples

Features: The cold shipping bags are lightweight and flexible, conforming to various item shapes to save space in parcels Insulated shipping bags store flat for compact stacking and are simple to handle for small business or home use. Specifications: Material: aluminized film, sponge, PE Color: silver Size: 9 x 12 inches Package includes: 25 x Insulated mailer metalized envelopes Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays

• Package Contents and Size: each pack contains 25 insulated metalized mailer envelopes, sized 9 x 12 inches; The quantity supports multiple shipments or sharing with family and friends, providing a steady supply for regular mailing needs
• Cold-chain Transport Performance: designed for cold-chain transport, the outer metalized film effectively reflects external heat and slows thermal transfer, helping to maintain internal low-temperature stability during transit and reducing temperature fluctuations for items
• Self-adhesive Tamper-evident Seal: the self-adhesive seal allows quick and reliable closure, provides clear visual evidence of tampering, and enhances delivery security so recipients can verify package integrity upon arrival and feel more confident about contents
• Cushioning Sponge Layer: vacuum packaging is applied to compress the internal cushioning; After opening the envelope, the sponge layer restores thickness within moments, increasing buffer protection and reducing impact risk during handling and transport
• Composite Barrier Materials: inner and outer composite layers form a continuous barrier that resists water, moisture and odor intrusion, helping to preserve the hygiene of samples or food items