Poly envelopes are a great choice for conveniently storing documents whether on the desk, in the drawer or on the go. Hook-and-loop closure for security and portability. Durable poly material resists tears and repels moisture, making these envelopes ideal for the home, office or classroom. Top loading file envelopes expand to 1-1/4". Includes 5 top load letter size (9-3/4" W x 11-5/8" H) poly envelopes with protective flap and hook-and-loop closure. Acid free and PVC free.