SELF ADHESIVE CLOSURE: Thanks to the strong silicone adhesive strip, the padded mailers seal perfectly, keeping the contents safe and avoiding opening or replacing during transport. BUBBLE PROTECTION: The inner layer of bubble wrap provides excellent protection against bumps and accidental drops. Your items will always arrive intact and well protected. QUALITY CRAFT PAPER - The outside of the padded mailing envelopes is made of durable brown kraft paper with smooth surface. A stylish and professional design, ideal for any type of Vinted or commercial shipping. LIGHTWEIGHT & PRACTICAL - Our mailing bags are extremely lightweight and do not add weight to your package, saving you on shipping costs. Opaque and confidential: thanks to the thickness of the kraft paper, the padded envelopes are completely opaque - you cannot see the contents without opening them, for safer and more discreet shipping.