Extra-wide design allows top tab folders to fit neatly inside without bulging out the sides. The gusset is fully lined with tear-resistant Tyvek® and features special rollover reinforcement at the top. The gusset extends into front and back panels twice as far as standard expanding wallets for super strong bonding strength. Tyvek® reinforced protective flap with elastic cord closure. This product was made using wood sourced from a certified managed forest.