Features: Expansion Mailers Made with DuPont Tyvek Material, lightweight, strong and durable Tyvek material is resistant to tears, punctures, moisture and chemicals - for long-lasting performance Tyvek material is also lightweight and can save on postageā¦
Features: Expansion Mailers Made with DuPont Tyvek Material, lightweight, strong and durable Tyvek material is resistant to tears, punctures, moisture and chemicals - for long-lasting performance Tyvek material is also lightweight and can save on postageā¦