These open side expansion mailers are made from durable DuPont Tyvek material, ensuring that your packages are protected while remaining lightweight. The mailers feature a #13 1/2 square flap with a convenient Redi-Strip closure for easy sealing. Ideal for a variety of shipping needs, they measure 10 x 13 inches and come in a classic white color, with 100 mailers per carton.
Quality Park Products QUAR4440 Tyvek Open Side Expansion Mailers - 10x13