Heated Apparel FAQ

It depends on what you want to keep warm and where you'll wear it:

• Cold core, back or shoulders: a heated vest is the most popular pick — layers under coats or wears solo indoors.
• Full-body outdoor warmth: a heated jacket with hood and sleeves for serious cold.
• Cold feet: heated socks for hunting, fishing, skiing or work boots.
• Indoor comfort: heated slippers for chilly floors and home offices.
• Neck-only warmth: a heated scarf for commutes, dog walks or as a gift.

Puffer vest: Down Cotton insulated, warmest of the three, wind- and water-resistant. Best for static outdoor activity such as hunting, ice fishing or watching a game.

Softshell vest: stretchy and breathable, water-resistant fabric without insulation. Best for active use where you don't want bulk.

Fleece gilet: soft, lightweight mid-layer. Wears under a coat for extra core warmth or solo indoors and in autumn.

The 9-zone version focuses heat on the core (collar, chest pockets, upper back, lumbar). The 15-zone version adds extra coverage across the back for more even, full-body warmth. If you mainly want quick core warmth at a friendlier price, go with the 9-zone. If you spend long hours outdoors in serious cold, the 15-zone is worth the upgrade.

Yes — most of our heated vests and jackets come in dedicated men's and women's cuts. Look for "Men's" or "Women's" in the product title. Some accessories such as heated socks, scarves and gilets are unisex with one stretchy size that fits most adults. Each product page shows a size chart.

It depends on the product. Products labelled "with Battery" or "with Battery Pack" include the battery. Products labelled "(Battery Not Included)" need a separate USB power bank — match the voltage your product requires (5V, 7.4V or 12V).

Typical runtime per full charge depends on heat level and battery size:

• 10000mAh on a 5V vest: about 3-4 hours on High, 5 hours on Medium, up to 8 hours on Low.
• 20000mAh battery: roughly twice that — a full work day on Low.
• 5000mAh on socks, scarves or gloves: about 3 hours on High, up to 8 hours on Low.

Exact runtime is listed on each product page.

Voltage controls how much power the heating elements receive — higher voltage means faster warm-up and hotter peak temperature.

• 5V (USB): standard USB power bank voltage, used by most heated vests, scarves, body warmers and slippers.
• 7.4V: medium voltage for heated jackets, fleece jackets and heated gloves.
• 12V: highest voltage, for our most powerful 15-zone vests.

Important: only use the voltage your product is designed for. The wrong voltage can damage the heating elements.

Yes — for 5V products, any standard USB-A power bank with at least 2A output will work. We recommend at least 10000mAh for a full day of warmth. For best results see our GOKOZY 5V 10000mAh Power Bank. For 7.4V and 12V products you must use a battery designed for that voltage.

Roughly 7-8 hours for a 10000mAh battery and 10-12 hours for a 20000mAh battery. GOKOZY batteries are designed without fast-charging to extend battery lifespan and improve safety. We recommend charging overnight before a full day of use.

Yes, but expect somewhat reduced runtime below freezing — this is normal for all lithium-ion batteries. Keep the battery in an inside pocket close to your body, fully charge it before heading out, and start on a higher heat setting to warm the battery before dropping to Low.

If you spend full days outdoors — hunting, ice fishing, ski trips, jobsite work — a spare battery roughly doubles your time in the cold and can charge your phone in the field. See our 5V Power Bank, 7.4V Power Bank and 12V Power Bank.

It depends on the watt-hour (Wh) rating:

• Under 100Wh: normally allowed in carry-on without prior approval — this covers our 5000mAh, 10000mAh and most 7.4V batteries.
• 100-160Wh: usually requires airline approval. Our 12V 20000mAh battery may exceed this.
• Lithium batteries must travel in carry-on, never checked luggage.

Always check your airline's latest policy before flying.

Each product page has its own size chart with chest, waist and length measurements. Measure yourself with a soft tape over a thin t-shirt. If you're between two sizes: choose the smaller size for a fitted look worn solo, or the larger size if layering over a sweater.

Our vests and jackets generally fit true to standard US sizing. If you usually wear a Medium, the GOKOZY Medium should fit you well. If you're broad-shouldered or plan to layer thick sweaters underneath, consider sizing up by one.

Yes — heated vests are designed to layer. The slim profile fits neatly under most winter coats, ski shells and work jackets. Choose a size that gives a snug-but-not-tight fit so the heating elements stay close to your body.

We offer a 30-day refund and 30-day exchange on all heated apparel, plus free return shipping within the United States. Items must be returned in original condition with all accessories. See our Return Policy.

Maximum temperatures vary by product and heat level:

• Heated vests & jackets: roughly 95°F (35°C) on Low up to 131°F (55°C) on High.
• Heated scarves: 122°F (50°C) Low to 140°F (60°C) High.
• Heated slippers: 113°F (45°C) Low to 149°F (65°C) High at the sole.

Always start on Low and step up if you want more warmth.

Most products warm up noticeably within 10-30 seconds on High and reach peak temperature within 2-3 minutes. Carbon-fiber heating elements heat much faster than traditional resistance wires.

Heat zone locations depend on the product:

• Vests & jackets: chest pockets, collar, upper back and lumbar; some models add shoulders.
• 360° socks: top of foot, sole and toes.
• Standard socks: top of foot and toes.
• Slippers: wraparound from toes to sole.
• Scarves: back of neck.
• Gloves: back of hand and fingertips.

Yes — paired with appropriate base layers and an outer shell, our heated vests and jackets work well at sub-zero temperatures. Start on High to warm up, then drop to Medium or Low for steady runtime. Our 12V 15-zone vests deliver the most warmth for serious cold.

Yes — most of our heated vests, jackets and fleece gilets have dual independent controls, so you can set the upper-body heat differently from the lower-body heat.

Yes — all GOKOZY heated apparel is machine washable, but you must:

• Remove the battery and disconnect USB cables first.
• Use the gentle / delicate cycle with cold water.
• Place the item in a mesh laundry bag.
• Use mild detergent — no bleach.
• Air dry only — never tumble dry.

Hand washing is the gentlest option and extends the life of the heating elements.

No — do not iron the heating area, as direct high heat can damage the carbon-fiber elements. Use a clothing steamer at low temperature instead, avoiding the heating zones.

Wash and fully dry the garment, then store it folded in a cool, dry place away from direct sunlight. Store the battery separately at about 50% charge and top it up every 3-4 months to keep the cells healthy.

Remove the battery first, then spot-clean the exterior with a damp cloth and mild soap. Air dry. Do not soak or machine wash.

Yes. GOKOZY heated apparel runs on safe low-voltage rechargeable batteries (5V, 7.4V or 12V — well below household voltage). Every battery has built-in safeguards against over-current, overheating, overcharging and short-circuiting, and our batteries use UL-certified Li-ion cells.

Most of our heated vests and jackets are water-resistant — fine for light rain, snow, dog walks and outdoor work. For sustained heavy rain, wear a waterproof outer shell over the heated layer. Never submerge heated apparel in water.

We recommend consulting your healthcare provider before using heated apparel if you are pregnant, have a pacemaker, diabetes, reduced sensitivity to heat, or any other medical condition. We do not make medical claims about our products; they are designed to provide gentle warmth for general comfort use.

GOKOZY heated apparel is designed for adult use. Children should not operate the heating controls or battery unattended.

Orders typically ship within 1-2 business days. Standard delivery within the continental US takes 3-7 business days from dispatch, and you'll receive a tracking link by email. See our Shipping Policy.

Yes — we ship across Canada with delivery typically taking 5-10 business days. Tracking is included. Any applicable duties, taxes or customs fees are the responsibility of the recipient.

Yes — we offer free standard shipping within the United States on orders over $79. The discount applies automatically at checkout. See our Shipping Policy for current rates.

We offer a 30-day refund and 30-day exchange on all GOKOZY heated apparel, plus free return shipping within the US. Items must be returned in original condition with all included accessories. Read the full terms on our Refund Policy page or email support@gokozywear.com.

All GOKOZY heated apparel comes with a 1-Year Limited Warranty on the heating elements and a 1-Year Limited Warranty on the battery against manufacturing defects. The warranty does not cover damage from misuse, accidental damage, modification or normal wear and tear.

Most issues are quick to fix:

• Check the battery is fully charged and properly connected.
• Long-press (not tap) the power button — it usually needs 2-3 seconds.
• Try a different USB cable to charge.

If it still won't heat, email support@gokozywear.com with your order number and a short description or photo. We respond within one business day.

Yes — we stock replacement and spare power banks, batteries, charging cables and accessories. Browse our Battery & Charger collection or email support@gokozywear.com if you can't find the part you need.