Except for the Econ bag, all bags are 5-6 mil.  ShieldPro offers lots of bag styles others don't, because unlike most other sellers, we are the manufacturer.  Please see the definitions below if you are unsure of a particular item.

Gusseted Bag - A gusseted bag folds out at the bottom so it can stand up during filling.  (It has an extra dimension, so for example our Gusseted 1-Gallon bag measures 10"x"16"x4", meaning it has a 4" gusset)

Tamper Evident - Great bags for food storage pros.  These bags are OPEN AT THE BOTTOM, and have a pre-sealed Zip Seal at the top.  This means you fill the bag from the open bottom, and then heat seal it.  This means you have a perfect, factory-sealed zip seal at the top to protect your food after it has been opened.  Often used by commercial packers to ship food in.

Zip Seal - A standard Ziploc style bag.  It is filled from the Zip Seal end.  For maximum protection, you can heat seal above the Zip Seal.

OD - Industry lingo for a 'standard' Mylar Bag.  It is sealed on 3 sides and has an opening on the 4th where you fill and heat seal the bag.  This is the 'standard prepper bag'. 

Economy - Our 'Econ' bags are still awesome for food storage, and they have sold more than any other prepper food storage bag in the US.  (In the millions, and growing every day!)  It is 3.5 mils vs. 5-6 mils for the standard ShieldPro bags.  However, it still offers great barrier protection, comparable to many other sellers '4 mil' bags.

How to seal:  If you are only doing a few bags, a clothes iron (on the wool setting or a little higher) or a hair straightener work perfectly.  If you are a business or prep group sealing hundreds of bags, consider a KF-150cst Heat Sealer hand sealer to make the job a breeze. 

How Many Oxygen Absorbers Should I Use?:  The general rule of thumb is to use 300-500cc per 1 gallon of bag.  Thus for a 1 gallon bag, use 1-2 300cc oxygen absorbers.  For a 5 gallon bag, use a 2000cc oxygen absorber.

About ShieldPro -  We are a family-owned and run company based out of Nashville, TN.  However, we don't just sell our products...we use them.  We have been preppers going on 10 years.  Our preparedness group has used ShieldPro bags to store over 25 person-years of food (and counting).  We believe in the values of preparedness, financial and personal responsibility, and a strong work ethic. 

I founded ShieldPro based on those values.  This means that I will make your order right, no matter what.  Whether that means an easy, hassle-free return, or a reshipped item if we've screwed something up.  Because of this, I hope you will give us a chance to fix any problems before you leave anything other than 5-star feedback.  This business is our livelihood, and feedback is the lifeblood of that business.

Please let me know if you have any questions, I look forward to serving you!