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Product reference photo; selected Light blue MTF fabric sample.
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EMF Block
EMF Protection Jacket with Collar and Pockets – Trevello
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Shipping policyBring a familiar collared shape to your EMF clothing wardrobe with the Trevello EMF Jacket with Collar and Pockets. Long sleeves, a defined neckline and front pockets make AJ815 a practical separate to coordinate with your own trousers. Choose the colour and conductive-fabric version that suit your priorities, then build the rest of the outfit around clothes you already like to wear.
Choose Trevello when you want a dedicated upper-body layer to pair with your own favourite trousers. Its selection spans metal-fibre and silver-fibre fabrics, with neutrals, blues and selected green options. The range gives you room to make two distinct decisions: how you want the jacket to look, and which declared fabric composition you want to select. Read the full option label to keep those choices together.

A jacket shape with everyday purpose
Trevello's collar creates a more defined neckline than a collarless top. It can sit within an outfit built around a simple base layer, giving the upper half of your look a clear outline. If you usually wear separates rather than coordinated sets, this is a useful format to consider. Your trousers remain your own choice, so the jacket can work as the individual piece that brings the outfit together.
Long sleeves distinguish AJ815 from a vest. They extend the garment's fabric along the arms, while the body forms the upper-torso layer. That is a difference in physical clothing coverage, not a numerical performance claim. Compare the jacket with sleeveless styles according to the cut you want to wear: some wardrobes call for a vest over a shirt, while others make more sense with a full-sleeved outer layer.
The front pockets are a practical detail for small essentials. Think about how you normally use jacket pockets and whether their position suits your routine. If a particular item needs to fit, confirm pocket dimensions rather than estimating capacity. The presence of pockets adds convenience, but it does not make them a separate RF-shielding pouch or establish a tested storage function for electronic devices.
Choose a separate instead of a complete outfit
AJ815 is the jacket only. Matching trousers, shirts, shoes and other styling pieces are not included. That makes the product particularly relevant when you already have trousers you enjoy wearing and want to add a conductive-fabric upper layer. Start with those trousers and the tops you use most often, then choose a jacket colour that helps them work together.
A dark option can support a restrained combination, while a lighter blue or neutral may provide more contrast. Green gives the silver-fibre selection another direction for shoppers who prefer a colour outside the black-and-blue family. These are styling possibilities, not rules. The important thing is to choose a colour you can picture in several real outfits rather than only in one product photograph.
Four declared conductive-fabric categories
Trevello's options include MTF, 50Ag, 75Ag and 100Ag. The supplier declares the following compositions for the specified fabric in each category:
- MTF: 41.8% cotton, 32.1% polyester fibre and 26.1% metal fibre.
- 50Ag: 50.6% polyester fibre and 49.4% silver fibre.
- 75Ag: 25.2% polyester fibre and 74.8% silver fibre.
- 100Ag: 100% silver fibre.
Use these figures to compare the declared fabric compositions. The rounded silver-fibre codes are option names: 50Ag identifies the 49.4% silver-fibre formulation, and 75Ag identifies the 74.8% formulation. They are not percentages of radiation blocked. The specifications also apply to the named fabric, rather than automatically describing every layer, trim and component in the finished jacket.
MTF offers a cotton, polyester and metal-fibre formulation. The Ag-labelled choices identify the silver-fibre formulations. Use composition to identify the material you want, then bring the decision back to your wardrobe and the way you prefer your jacket to fit. Compare what is actually stated, then choose the fabric category alongside the garment shape, colour and fit that suit you.

Find the colour and fabric pairing you want
The MTF palette includes Light blue, Light purple, Black, Heather gray, Sky blue, Light gray and Navy blue. These are separate option labels. In particular, Light blue and Sky blue should be treated as different selections, and Heather gray is distinct from Light gray. Keeping those names intact helps you select the intended combination rather than assuming similarly named shades are interchangeable.
In 50Ag, the listed colours are Green, Off-white and Black. In 75Ag, choose from Green, Off-white, Black and Navy blue, subject to the available size combination. In 100Ag, the listed choices are Off-white, Black, Navy blue and Green, again with a narrower size selection for some combinations. This makes the complete label more informative than the colour name alone.
Across the jacket range, the size labels are M, L, XL, XXL, XXXL and 4XL. Most listed colour-and-fabric combinations cover that range, but two deserve particular attention: Navy blue 75Ag is listed in XXXL and 4XL, and Green 100Ag is listed in XL. Confirm the current selector for your chosen combination before ordering. Do not assume that a colour available in one material is offered in every size in another.
A simple way to narrow the range
If composition is your first priority, begin with the fabric code and then review its colours in your size. If you have a specific outfit in mind, begin with colour and see which material versions are actually available. For a clean comparison, keep two choices fixed while changing the third. Comparing Black 50Ag with Black 75Ag in the same size is clearer than changing colour, material and size at once.
If your first choice is unavailable in the combination you need, decide which element is flexible. You might prefer another colour within the same composition, or another listed fabric within the same colour. The options should reflect your decision, rather than a substitution you did not intend. Before adding the jacket, read the complete colour-and-code label followed by the size.
What conductive-fabric EMF shielding means
A conductive textile can reflect and absorb portions of incoming radio-frequency energy, reducing transmission through the material. Its electrical structure and the frequency influence that interaction. This metallised-fabric research illustrates the broader material principle.
AJ815 brings a conductive-fabric choice into a long-sleeved jacket shape. The collar, sleeve ends, front opening and lower hem define that wearable layer, and its construction differs from a continuous fabric sheet. An EMF jacket should therefore be considered as both a material selection and a garment. Choosing the right cut matters because that is the form in which you will actually use the textile.
The phrase EMF protection clothing does not make all electromagnetic fields or wearing conditions equivalent. The useful focus here is the specified conductive fabric and its RF-shielding purpose. Fibre percentages are not whole-body protection percentages, and the jacket is not described as providing a medical benefit. Understanding the distinction lets you compare the available options without assigning them claims that their names do not make.
Choosing an EMF protector layer for everyday clothing
For a jacket, fit involves more than chest room. Consider the shoulders, sleeve length, upper arms, body length and the space needed over your usual top. If you wear thicker layers, account for them when comparing dimensions. The same jacket can sit differently over a thin shirt and a heavier garment, so choose the reference outfit you expect to wear most often.
A well-fitting jacket from your wardrobe is a useful comparison piece. Measure it using the same method as any AJ815 measurements you obtain. Laid-flat chest width, body chest circumference and shoulder width are different quantities, and they should be labelled clearly. Do the comparison with the existing jacket arranged as instructed, rather than mixing an open garment measurement with a fastened measurement.
The listed M-to-4XL labels identify the available sizes; they do not provide a reliable conversion to another brand's sizing. If you need an exact length or width, confirm it for the selected AJ815 size. Avoid assuming that the fabric stretches or that moving up one size adds a particular number of centimetres. Actual garment measurements give you a stronger basis for the purchase.
Think through your usual movements
When trying on a jacket, reach forward, bend your elbows and take a seat while wearing the intended base layer. Notice whether the shoulders pull, the sleeves ride into an uncomfortable position or the body feels restrictive. Also check where the collar sits against your top. These are general fit checks that help you decide whether a particular size suits the way you use clothing throughout a day.
If you expect to add another coat over Trevello, check that combination as well. A second long-sleeved garment needs room through the arms and shoulders. If the jacket itself will be the visible outer layer, consider the proportions of the trousers and shoes you plan to pair with it. Practical fit and visual balance both help make a specialised clothing purchase feel like a natural wardrobe choice.
Care for the selected material and construction
Use the care instructions supplied with your chosen AJ815 jacket. The range contains several declared fabrics, and the finished garment includes seams, pockets and other components. Follow the actual label when deciding how to clean, dry or press it. A method recommended for another EMF garment, or for ordinary cotton clothing, should not automatically be applied to this product.
Keep those instructions where you can find them before the first clean. If your routine depends on a particular washing or drying method, confirm compatibility before ordering. Follow the label for the cleaning products, temperature and drying method suited to your jacket. Keeping those details with your order makes later care questions simpler, especially if you add another fabric version to your wardrobe.
Trevello buying questions
Are trousers included with the jacket?
No. This is the AJ815 jacket as a separate garment. Pair it with your own trousers or choose any additional clothing separately. The freedom to build an outfit around existing pieces is one of the main reasons to choose this format.
Can I order every colour in every fabric?
No. The colour range changes with the material code, and selected combinations have narrower size availability. Green 100Ag is listed in XL, while Navy blue 75Ag is listed in XXXL and 4XL. Use the complete selector rather than combining independent colour and fabric names in your head.
Does 100Ag describe every part of the jacket?
It identifies the supplier's specified silver-fibre fabric. It does not describe every garment component or mean that all radiation is blocked. Read it as a material label alongside the jacket's actual shape and selected size.
Who should consider this design?
Consider Trevello when you want a collared, long-sleeved EMF clothing separate with front pockets and a choice of declared conductive fabrics. If your preference is a sleeveless layer, an apron or a longer coat, compare those shapes before selecting the jacket.
Model: AJ815. Select the available colour, fabric code and size that work with your wardrobe to make Trevello your chosen EMF jacket.




