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We love hearing from you, so please reach out. Whether you have questions about our products, concerns about the items you ordered, or suggestions for new products, we want to hear from you. We value your feedback and have made it easy for you to reach the HECS® team.

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Frequently Asked Questions About HECS®

Human Energy Concealment Systems

Fit guaranteed, for worry-free ordering! HECS® takes pride in customer satisfaction. If an article of clothing does not fit properly, we will gladly exchange it for the right size. Call or email our team to explain the problem, and we will help you decide what the proper fit would be. Your new item will be shipped back to you the day following the arrival of your returned item by US Priority Mail. Items being sent back for exchange must be in new condition and in original packaging.

There are no exchanges on closeout items. Exchanges must be made within 30 days of the original purchase. Exchanges will only be made on items purchased directly through HECS®. Purchases through Amazon, eBay, etc. will have to be made through them. The customer will be responsible for the postage for getting the item back to HECS®, but HECS® will send the replacement back free of charge.

HECS® has warehouses in both the United States and Canada stocked with a variety of products. If your purchase is shipped to Canada from our United States warehouse, any taxes charged will be refunded to you. To expedite your purchase, we ship from the warehouse that stocks the item rather than wait for the item to be stocked in one of our Canadian warehouses. HECS LLC cannot omit or pre-pay the taxes for these purchases, so if you would like to estimate your total tax costs please utilize this calculator:

If your taxes were refunded to you, then you will be responsible for paying them when you receive your shipment.

The HECS® camo suit and base layer come packaged together, and contain a shirt, pants and head cover. You should order your size by what you wear in a regular cotton t-shirt in men’s sizes — we have researched this method extensively and have had a high success rate. The pants are adjustable, so the shirt is the most critical. While we can split sizes on top and bottoms, unless you have a very atypical build, we highly recommend against this.

The basic HECS® suit, as well as the baselayer, come with the shirt, pants and basic head cover/ face cover. Gloves, socks, multi-rag, and ball cap are sold separately. The 3-piece suit covers about 98% of the body and is enough to see a difference in almost any situation. We do recommend gloves for bird hunters/watchers/photographers, as birds see electrical radiation, and as such are the most affected by our technology.

The HECS® socks are heavyweight, over-the-calf type socks that adds some valuable coverage. HECS® ball caps are extremely lightweight, breathable and comfortable, and are made from HECS® material, but does not significantly add to the coverage if worn in conjunction with the head cover. Please note that HECS® black baselayers were designed for use in ground blinds or for our tactical market and contain a black multi-rag face cover instead of the standard camo head cover.

The HECS® suit is very easy to care for. For terrestrial suits, just machine wash in your favorite laundry detergent. Hang dry for the longest life, or dry on low heat for only a few minutes (please note, in some dryers, HECS® clothing will not be picked up by dryer sensors and will not shut off automatically). It is recommended that you handwash and hang dry the head cover, as the drawstring can get caught in the machine and damage the product. Also, you can use any of your favorite scent sprays, insect repellent, etc., without damaging to the suit. Use extreme caution when using ozone dry wash systems with your HECS® gear.

Raw ozone in heavy concentration is extremely destructive to HECS® carbon yarn (Please note: Exposure of HECS® fabrics to Ozone dry wash systems, which put raw ozone directly on HECS® fabrics, such as the Scent Crusher system, may void HECS® warranty.) HECS® has extensively tested the effects of ozone on HECS® fabrics with most currently available ozone units. The only system that we have tested that will not harm the HECS® grid over time is the Ozonics brand dry wash system. This is because, to our knowledge, the Ozonics system is the only one that uses a baffle system to channel the raw ozone around the garment but not actually force it though the fabric. Ozonics also uses a clean air rinse that we believe also helps to alleviate the deterioration of the fabric issue. Also, we have found no evidence of harm to HECS® fabrics by using an ozone generator in the woods (treestands, Blinds etc.) Bottom line, Ozonics brand ozone systems are fine to use with your HECS® suit.

Yes! HECS® is made to be worn in conjunction with other garments. In fact, a single HECS® layer will block up to 90% of your body’s electrical output, which is enough to drastically change your electrical signature and keep you concealed. While multiple layers do increase the percentage of signals blocked, we have not seen significant benefits from multiple HECS® layers in our testing.

While multiple layers do increase the percentage of signals blocked, we have not seen significant benefits from multiple HECS® layers in our testing.

The HECS® base material is made from a polyester based fabric and will not shrink under normal conditions and care.

The conductive carbon yarn we use to attain the technological advantage is actually woven into the fabric during production. It is a very intricate process that can be accomplished only with special proprietary methods, however, once the yarn is woven in it is very stable. As such, we have seen our garments last longer than five years with normal care and use.

See product information for full warranty details.

No, HECS® is not a scent control product. While HECS® does contain a significant amount of carbon, which does absorb a certain amount of scent, the main purpose of the technology is to block and hold in capacitance the naturally occurring electrical radiation our body emits. These fields are proven to be detectable by many animal species. See the HECS® Technology page on the website for more details.

We try to keep all items in stock and ready to ship at all times. Once we receive your order, it will ship out either the same business day or the next day depending on when we receive the order. Standard shipping is USPS Priority Mail; however, UPS delivery options are also available. In most cases standard shipments within the continental U.S. are received in less than five business days. In the rare occurrence that an item is out of stock, we will give you the option to back order or cancel the order.

In truth, you can’t purchase items for less on Amazon. We list our products at our suggested retail pricing on our website; however, there are several discount codes available by which you can get the product at our MAP price (which is the lowest price possible for authentic HECS® products). If you do not have a code, call or email us for more information on how to get the discounts. BEWARE — If you purchase your HECS® product from an online retailer like Amazon, you will need to go back to them for any returns or exchanges. HECS® does not accommodate returns or exchanges from customers of third-party sellers. While many sellers do a great job in this regard, unfortunately some do not.

HECS® technology can affect some electronic transmissions from items like FM radio transmission frequencies. HECS® will not affect your cell phone signal or most Bluetooth signals.

While it is indisputable that our electronic devices do emit electronic energy, it is very important to realize that man-made electronics have only been around for a very short time on. What we emit as living beings is an extremely low frequency field, which is very different from energy fields emitted by common electronics. While there is some debate on whether or not animals can sense these wavelengths of energy, we can say with certainty that they have not had enough evolutionary time to develop a natural defense mechanism to those fields. Living beings have been emitting these fields for eons, and thus animals, birds and fish have developed natural sensitivity to these fields and instinctively react to them. With that said, we have heard many reports of HECS® material being used as covers to make game cameras less detectable. This is certainly a feasible concept, and ongoing research is in process to verify to what extent our technology can affect these devices.

That is purely a personal choice. Most people use HECS® under other clothing. For those who use it as an outer layer, the camo is an important consideration.

Yes, if you want the full benefit of the technology. Having anyone in your group wearing HECS® will reduce the electrical emission and be beneficial, but to see the full effect of HECS® in the field, we strongly recommend that everyone be wearing it.

Different species react differently to our electrical radiation, and the intensity of the fields vary greatly from one person to another. In general terms, birds are the most sensitive of land animals to naturally occurring EM fields emitted from living beings. We believe they can see these fields, so they can pick up on them from great distance.

The HECS® effect on most common animals like deer and other mammals can generally be observed at distances under 40 yards, however, we have seen some instances where the effect is apparent at a much further distance, up to 200-300 yards or more. Canines, cats and bears are very sensitive to EM fields as well, and we have seen effects at distances over 200 yards with these animals.

A recent discovery found that canines actually have the highly electrically conductive molecule, Cryptochrome, in their eyes. This is the same molecule that is believed to be responsible for electromagnetic sensitivity in birds. As more and more scientific discoveries are made in this field, the more HECS® technology is being confirmed. There are other factors such as atmospheric conditions and the age and experience of the individual animal that also can affect animal reactions. Sometimes the benefits might be subtle, but many times they are obvious and indisputable.

HECS® will not claim to prevent animals from becoming aggressive, attacking, or causing harm. Reducing our electrical signature can help you blend into the background, but it does not completely disguise or hide your presence from wildlife.

IMPORTANT! Wildlife is very unpredictable and there are many factors that can trigger aggression. HECS® will not keep you from being attacked! It is always the responsibility of the individual to exercise caution and common sense when in areas where dangerous animals are present. HECS® technology is nothing more than a tool to help reduce the chances of reactive animal behavior. Realize and accept that it is still completely possible to be attacked by any form of wildlife while wearing HECS® technology, and HECS® assumes no responsibility for any individual who is harmed while wearing our technology.

“Bottom line, our energy is given off to animals. They respond to it, but HECS® garments can control this sixth sense.”

Dr. Dave Samuel

Virginia Professor, Emeritus of Wildlife Management

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