Three side seal pouch is sealed with three sides, leaving only one opening for users to load products. Three-side sealing bags are the most common way of bag making. The air tightness of the three-side sealed bag is the best. OEM custom printing is available, up to 8 colors. The 3 side seal bag is an excellent barrier against air and water and the ink and glue used are environmentally friendly. The 3 side seal pouch is user-friendly and has smart self-standing.