NUTRI-LOCK vacuum sealer bags keep the air out and lock the nutrients. Make your bags the exact length you need; no wasted material. Less spoilt food, less waste. The durable 4Mil-layer material is air and watertight! High density micro-channels make the bags SUPER flexible to provide a super-tight fit… LIKE AN ARMOR FOR FOOD. Nutri-Lock bags are BPA free! Nutri-Lock bags are made to US standards. Defends against FREEZER BURN. Perfect for SOUS VIDE cooking. LOCK THE NUTRIENTS IN! KEEP FOOD FRESH, HEALTHY AND RICH IN NUTRIENTS! Designed in Australia for healthy lifestyles, healthy bodies and healthy food. Helps keep food fresh up to 5x longer. Help keep super foods, super! KEEP FOOD TASTING DELICIOUS! Helps keep fruits and vegetables crisp and crunchy. Avoid freezer burn; keep steak looking and tasting juicy! Helps slow down food spoilage; no more soggy, gritty, wilting fruit and vegetables. GREAT FOR MARINADING. Lock your meat in a Nutri-Lock bag to speed up the marinade process. Nutri-lock is made in China to US stds.