General
What exactly is Mobile Warming Technology?
Mobile Warming Technology is the Fieldsheer family of high-performance heated clothing, designed to keep you comfortable in the harshest cold. Battery-powered, and often adjustable through bluetooth, our jackets, vests, gloves and socks rely on cutting-edge infrared heating to give you exceptional warmth.
How do I turn the garments on?
Our Mobile Warming heated products are driven by rechargeable 3.7v, 7.4v, and 12v batteries. Simply connect the battery to the cable inside the garment, power the battery on, and then hold down the touch-control button on the garment until its LED comes on. A quick tap of that same button moves you to the warmth level you prefer.
People often skip one of two steps when starting the heating panels. First, power on the battery by holding its button for 3-5 seconds. Second, hold the garment's own power button for 3-5 seconds. Fuller instructions for starting our 12V garments follow below.
Charge the battery completely, then plug it into the garment.
- Hold down the power button on the battery for 3-5 seconds until the 100% LED starts to blink.
- Hold down the power button on the garment for 3-5 seconds. When the button glows red, you are on the hottest setting.
- To move between heat levels, give the garment's power button a short press.
- To power the garment down, hold its power button for 3-5 seconds once more.
- Should your garment fail to restart, charge your batteries. Remember that batteries frequently arrive without a full charge.
Feel free to reach out to us if the garment still will not turn on!
Which size do I need to order?
Every Fieldsheer garment is cut with an athletic fit. Take a look at the sizing chart on each product page before you choose.
How should I wash my garment?
Detailed care instructions ship with each product, and the majority can go in the washing machine. For guidance tailored to your piece, visit our Apparel Care page.
How do I register my product?
All Fieldsheer garments include a 1 year warranty, counted from the day of purchase. To activate that warranty, you must register on this page: product registration.
Can heated gear disrupt Avalanche Transceivers?
Our heated gear passes testing for all Radio Frequency rules, yet its heating elements and built-in Bluetooth Low Energy might still disturb Avalanche Transceivers. Because of this, we advise turning your heated apparel / gloves off whenever you search with an Avalanche Transceiver, which reduces the likelihood of interference. Should you be buried in heated apparel / gloves that are still on, a search beacon will detect interference once it comes within 1/2 meter of the heated apparel / gloves.
Orders, Returns and Exchanges
Where is my order?
We process online orders Monday to Friday before 9 am PST, and any order submitted after 9 am PST waits until the following business day. Orders eligible for free shipping travel by FedEx Ground or FedEx Smartpost, with varying delivery times, while quicker delivery can be added for an extra fee. When your order leaves our warehouse, a confirmation email with tracking details will reach you. For any question about your order, feel free to contact us and a member of our team will reply within 48 hours.
Can I cancel or change my order?
Because we aim to deliver as quickly as we can, an order cannot be cancelled after processing has begun. If you would rather send it back, follow the steps on our Returns & Exchanges page.
What is the Return Policy?
With our 30 Day Money Back Guarantee, you can shop Fieldsheer heated apparel online with confidence. Should the purchase disappoint, return the new, unused item you bought from our store, still in its original packaging and with every tag attached, inside 30 days from the day your order arrived, and we will happily refund what you paid. To begin a return, head to our returns and exchanges page. Keep in mind that the purchaser covers every cost of sending product back under this guarantee. Ship returns with a method that can be tracked, and hold on to the postage receipt and tracking number.
Batteries
Why won't my battery stay powered on?
Models MW74V040, MW74V022 and MW74V023 (the ones with white LEDs) turn on with a quick tap of the power button, after which a few lights glow steadily. To turn these batteries off, press and hold the power button.
Models MW74V22, MW12V52, MW37V22-N, MW37V022 and MW37V122 have green or red LEDs; on those, hold the power button down for 3-5 seconds. Only the 100% light will come on and stay lit.
A few batteries include a timer and shut themselves off when no garment is drawing power. If yours is switched on and running a garment yet cuts out randomly while still holding charge, please contact us. We're glad to help you troubleshoot and review a warranty claim.
What is the battery's run time?
Run time varies with several factors, including how many panels heat the garment, how many mAh the battery holds, and the temperature outdoors. With the original battery, expect about 2-3 hours at the high setting and 8-10 hours at the low setting on most garments.
Your garment's user manual, found on its product page, lists estimated heat times for that specific item.
Is it possible to charge my phone from the battery?
The MW12V52 and MW74V040 battery models are both able to charge a phone or other devices via their USB-A output. When one is charging another device, keep it unplugged from your heated garment and from its own charger.
Where do I find a spare battery or charger?
Extra batteries are sold in our store, on each garment's product page or in the Battery collection.
How should I look after my battery?
Your user manual explains how to care for the battery, or head to our battery care page.
What is the right way to get rid of an old battery?
Never put it in the trash. Take your battery to an authorized recycling facility.
When does battery performance start to drop in the cold?
The outside temperature directly affects both the capacity and the function of the battery. The effect differs between garments, depending on how exposed the battery pack is. As a general guide to the operating temperature of our batteries, check the specs below.
Do the new 7.4v USB batteries work with older 7.4v garments?
Yes. Older 7.4V garments can use the DC port found on the new 7.4V Micro USB batteries.
How do I know whether my battery is switched on?
The battery LED indicators below confirm the garment battery is on, depending on which Mobile Warming garment you own:
12v Garments with Battery MW12V52 One blinking 100% LED (To turn on: hold for 3-5 seconds. A single press only shows the remaining charge.)
7.4v Garments with Battery MW74V222 One steady 100% LED (To turn on: hold for 3-5 seconds. A single press only shows the remaining charge.)
3.7v Premium Sock Battery MW37V22-N One steady 100% LED plus a blinking 25% LED. (To turn on: hold for 3-5 seconds. A single press only shows the remaining charge.)
3.7v Standard Sock Battery MW370 One steady 100% LED (To turn on: hold for 3-5 seconds. A single press only shows the remaining charge.)
7.4v Garments with Battery MWLB74V022 Four steady LEDs (To turn on: press once. To turn off: hold for 3-5 seconds.)
7.4v Garments with Battery MWLB74V022 Four steady LEDs (To turn on: press once. To turn off: hold for 3-5 seconds.)
5v Gloves with Battery MW05V047 Four steady LEDs (To turn on: press once. To turn off: press twice.)
MW Connect App
App first use quick steps
See the details at the link below:
My Fieldsheer heated product will not pair with the MW connect app. What more can I try?
- iPhone users: make sure your iOS version is 9.0 or newer
- Android users: make sure your OS version is 5.0 or newer
- Permissions:
Bluetooth: the app pairs with your phone over Bluetooth BLE. When you open the MW Connect app for the first time, it asks to use Bluetooth or Location services so BLE can work. Choose Yes. - Help: Got questions? Feel free to reach our support team
Warranty
What does the fieldsheer warranty cover?
Coverage extends solely to the first buyer, and only for items purchased through an authorized Fieldsheer Dealer.
LIMITED WARRANTY
Fieldsheer brand products purchased from an authorized Fieldsheer retailer inside the United States carry a guarantee against factory defects in materials and workmanship for one (1) year starting on the purchase date. Should the fabrics or construction of a covered Fieldsheer product fail within one (1) year of purchase because of a manufacturing defect, we will fix the product free of charge.
The buyer pays the postage to send a warranty item to us.
How can I tell whether my item is defective?
Defects come in many forms and generally appear quickly. A few examples:
- A snap that comes off.
- A shock cord/bungee that slips out or snaps.
- A seam that was left unsewn, unravels, or has snapped threads.
- Fabric/Material beside the seams that frays and gives way.
- A broken wire.
- The garment fails to power on or shut off by itself.
- A battery that refuses to charge, even with different charging cables.
What does the warranty exclude?
- Ordinary wear and tear
- "Accidents"
- Washing machine/dryer damage
- Waterproof coating that fails after long use or storage
- 686 products not bought from an authorized 686 dealer
- Online orders shipped to other countries
Unsure if your item qualifies for warranty coverage? Please contact us and we will tell you. Should your Fieldsheer gear prove defective, we will do our best to set things right.
Will my Fieldsheer product be fixed or swapped for a new one?
Defective products covered by warranty are replaced.
What is the expected turnaround?
Provided we have everything we need from you, the warranty process usually finishes in a few days. To get the quickest replacement, add all the details below when you submit your claim.
1. Proof of purchase
2. Product size and description
3. A description of the problem
4. Contact info/shipping address
How do I follow up on my warranty claim?
Simply contact us to reach a warranty team member, and put your RA# in the subject line. We are available 9am-5pm CST, Monday to Friday.
Account info
Is an account required?
No, you are not obliged to register. That said, we encourage you to open one so you can take advantage of its perks. As an example, you can log in quickly the next time you stop by, and you will get tailored suggestions and services that fit what you need. Having an account lets you make the most of what we offer and saves you effort down the road.
How can I change the password on my account?
Forgot your password? No problem. Just click the 'forgot password' link to reset it. Once you do, an email will arrive with steps for choosing a new password. Follow them to pick one that is both secure and easy for you to remember. Always keep it private and never give it to anyone else.
Recall info
Does my product have active recalls?
If we have active recalls and your product is eligible, please see our recall notice page.