Treeline Men's Heated Vest
9-zone men's heated vest with a 20,000mAh battery
- 9 heat zones: collar, front and back
- 3 heat settings with one button
- 20,000mAh battery pack included
- Sizes M to 3XL, measured to layer
- 60-day Stay Warm guarantee
- 60-day Stay Warm guarantee. Not warm enough? Send it back within 60 days for a full refund. Return shipping is on us.
- 2-year warranty on every heating element.
- Real people on email and phone: replies within 1 business day, monday to friday.
Details
The Treeline is built for long, still hours in the cold. Nine heat zones across your back, lower front and collar keep your core warm when you can't move to warm up, and a single quiet button cycles through three heat settings. Wear it over a base layer and under your jacket or camo shell.
CoreLoop™ heat mapping
When you get cold, your body protects your core first and cuts blood flow to your hands and feet. CoreLoop puts the heat where blood runs close to the surface: your collar, two panels on your lower front and six across your back. Warm blood carries that heat around the loop, which helps your fingers and toes stay warmer for longer. Add Belay gloves and Switchback socks to close the loop.
Why it works outside
- Core heat for long sits. Stay in the stand or on the ice through the last hour of light.
- Three settings. High to warm up fast, medium for steady hours, low to stretch the battery all morning.
- Battery in the box. Ships with a rechargeable battery pack and charging cable.
- Out of the way. The battery sits in an internal pocket, clear of a bow draw, a cast or a harness.
What's in the box
Treeline Men's Heated Vest, rechargeable battery pack, charging cable, quick-start card.
Covered for two seasons
Try it outside for 60 days. If it isn't keeping you warm, send it back for a full refund with a free return label. Heating elements and the battery are covered by our 2-year warranty.
Heat, battery and specs
| Heat settings | 3 (high, medium, low) |
|---|---|
| Heat zones | 9 |
| Battery | 20,000mAh 5V power bank, included |
| In the box | Garment, battery, charging cable, quick-start card |
| Colour | Black, Navy, Red |
| Warranty | 2 years on heating elements and battery |
| Guarantee | 60-day Stay Warm guarantee |
Size guide
| Size | Fits chest | Garment chest | Length | Shoulder |
|---|---|---|---|---|
| M | 38 to 4097 to 102 | 43.5110 | 26.567 | 16.542 |
| L | 41 to 43104 to 109 | 46.5118 | 2871 | 17.544 |
| XL | 44 to 46112 to 117 | 49.5126 | 29.575 | 1846 |
| 2XL | 47 to 49119 to 124 | 53134 | 3179 | 1949 |
| 3XL | 50 to 52127 to 132 | 56142 | 32.583 | 2051 |
How to use it
- Charge it firstFully charge the power bank before your first trip, using a standard USB wall charger.
- Plug in the batteryOpen the inner battery pocket, plug the cable into the power bank and zip the pocket closed.
- Switch onPress and hold the button for 3 seconds until it lights up.
- Pick your heatPress the button to move between high, medium and low. Start high to warm up fast, then drop to save battery.
- Switch off and rechargeHold the button for 3 seconds to switch off. Recharge the power bank after each trip.
The science behind CoreLoop™
Brajkovic and Ducharme (2002) found that warming the torso kept fingers warm and nimble better than heating the hands directly, in 3-hour tests at −25°C (−13°F).
CoreLoop™ heat mapping is built on that idea. When you get cold, your body protects your core first and cuts blood flow to your hands and feet. Heat over the core lets warm blood keep reaching them. Add gloves and socks to close the loop at your hands and feet.
The 9 heat zones listed for the Treeline vest (collar; front core, left; front core, right; upper back, left; upper back, right; mid back, left; mid back, right; lower back, left; lower back, right) come from the factory heat-zone diagram for this exact product, so what we describe matches what you receive.
The study tested heated clothing in a lab, not this product. How warm you stay depends on your layers, how active you are and the weather. Related paper: Brajkovic, Ducharme and Frim (2001). How CoreLoop works.
Washing and care
Close all zips and pockets, then machine wash cold on a gentle cycle in a laundry bag, or hand wash.
Hang to dry. Never tumble dry, iron, wring or dry clean heated gear.
Make sure the garment is completely dry before you reconnect the battery.
Shipping and returns
Free US shipping, delivered in 3 to 7 business days. Orders placed before 12 pm Eastern on a business day ship the same day. Express delivery is available at checkout.
60-day Stay Warm guarantee: if it isn't keeping you warm, email hello@heatedsummit.com within 60 days of delivery and we'll send a prepaid return label and refund you in full. Read the full policy.
CoreLoop™
heat mapping
Heat on
in minutes
CoreLoop™ heat mapping
Your body protects its core first. The Treeline vest heats 9 zones where blood runs close to the surface, so warm blood keeps reaching your hands and feet.
- Collar
- Front core, left
- Front core, right
- Upper back, left
- Upper back, right
- Mid back, left
- Mid back, right
- Lower back, left
- Lower back, right
Built on research by Brajkovic and Ducharme (2002), which found torso heating kept fingers warm and nimble better than heating the hands directly. Pair any 2 pieces to save 15%, all 3 to save 25%. How CoreLoop works
Close the loop
Add a second piece and save 15%. Add a third and the whole order saves 25%.
Questions about the treeline vest
Is it quiet enough for hunting?
The heat control is a single soft-press button, and the battery sits in an internal pocket out of the way.
How long does the battery last?
As a guide, about 3 hours on high, 5 to 6 hours on medium and up to 8 to 10 hours on low. Keep a spare battery in an inside pocket for all-day sits.
Can I wear it under camo?
Yes. It's slim enough to wear under a hunting jacket or bibs.
Can I wash it?
Yes. Take the battery out, close the zips and machine wash cold on a gentle cycle, then hang to dry.
Free US shipping
Tracked delivery in 3 to 7 business days from our US warehouse.
60-day Stay Warm guarantee
Not warm enough? Full refund, and the return label is on us.
2-year warranty
Heating elements and batteries covered for two full seasons.
Real support
Email and phone help from people who wear the gear.
