Does Heated Gear Run Small? The 2026 Fit Guide I hate to break it to you, but if you buy your standard winter jacket size for a heated vest, you might be cold. We see this review all the time on Amazon for our competitors: _"I bought a Large because I like room for sweaters, but I can barely feel the heat!"_ Here is the truth: **Heated gear is not a jacket. It is a technological layer.** And technology has rules. If you are looking for the short answer: **Yes, a heated vest should fit tighter than your regular coat.** If it hangs loose, you are heating the air, not your body. But that doesn’t mean you have to feel like a sausage. Here is the 2026 guide to getting the perfect fit. ### **Why "Snug" is Actually a Feature** The science of heated apparel—whether it's our Graphene technology or the old-school copper wires used by brands like Ororo and Milwaukee—relies on **conductive heat transfer**. Think of it like a seat warmer in your car. If you hover two inches above the seat, you don't feel the warmth. You have to sit _on_ it. - **The Air Gap Problem:** If your vest is too loose, your body heat escapes, and the vest's heat has to travel through a layer of cold air to reach your skin. You lose 40-50% of the battery's efficiency instantly. - **The Graphene Solution:** EarthBae uses Graphene elements, which are paper-thin and flexible. They are designed to sit flush against your base layer to create a "micro-climate" directly on your torso. ### **The 2026 "Smart Fit" Rule** In the past, you had to choose between being warm (wearing a vest that felt like a straitjacket) or being comfortable (wearing a loose vest that didn't work). We fixed that with the **Flex-Panel System**. Unlike the rigid nylon shells of most competitors, EarthBae vests feature 4-way stretch panels on the sides. This allows the heating elements on the chest and back to press firmly against you for maximum warmth, while the sides expand to let you breathe, move, and drive without restriction. ### **How to Measure for EarthBae (Forget Your Jacket Size)** Don't guess. Grab a tape measure (or a phone charging cable and a ruler). 1. **Chest:** Measure under your armpits at the fullest part. 2. **Waist:** Measure around your belly button (this is where the battery sits—you want it stable, not bouncing). 3. **The Layer Test:** Measure while wearing the shirt you plan to wear _under_ the vest (usually a long-sleeve tee or thin sweater). **Pro-Tip:** If you are between sizes, **size down.** - _Example:_ If you measure 41 inches and a Medium is 40-42 while a Large is 42-44, take the Medium. The stretch panels will handle the inch, and the heat will be significantly more intense. ### **Common Questions (FAQ)** **Q: Can I wear a thick hoodie under my heated vest?** A: You can, but we don't recommend it. Thick fabric acts as insulation _blocking_ the heat from reaching your skin. For the best result, wear a thin base layer, then the EarthBae vest, _then_ your thick hoodie or coat over the top to trap the heat in. **Q: How does EarthBae sizing run?** A: We use tailored cuts for the Women's heated vest and are true to size. The Men's heated vest runs big and we recommend sizing down. The unisex heated hoodie is thick and oversized, so get your usual size. The Kid's heated hoodies are made for teens and young adults. Check our specific size chart on the product page—do not assume your size is universal! **Q: What if I have broad shoulders?** A: Since our vests are sleeveless, shoulder width is less of a concern than chest measurement. Focus on the chest fit to ensure the heating elements align with your core. _Click to buy and join our email list: earthbaewear.com (or on Amazon)._ Enhance your winter wardrobe with EarthBae's innovative heated apparel for optimal comfort and endurance.