FAQ's

How long does Warmside stay heated?

It depends on the heat level. With a 10,000mAh (5V/3A) USB power bank: High lasts about 2 hours, Mid about 4 hours and Low about 6 hours. A bigger power bank runs longer. Power bank not included.

Will Warmside fit on stadium bleachers?

Warmside is designed to fit most standard stadium bleachers, adding cushioned comfort to football games, soccer matches, and other outdoor events.

Can I take Warmside on the go?

Yes! Warmside folds for easy carrying, and you can wear it as a backpack for hands-free transport—so you can bring your favorite seat wherever game day takes you.

Does Warmside offer heat ?

Yes! Built-in heating help you stay warm and relaxed through long games and chilly outdoor events.

Verified Customers

Why Warmside?

warmside Others
Built In heat Yes No
Car Seat style Back Support Yes No
Thick Padded Cusion Yes No

How it works

  1. 1

    Plug in

    Connect any 5V/3A USB power bank and tuck it into the side pocket.

  2. 2

    Pick your heat

    Press the armrest controller for low, mid or high. Back and seat switch on separately.

  3. 3

    Stay warm all game

    Warms up in minutes and keeps you cozy from kickoff to the final whistle.

Specifications

Heat levels High 110–130°F · Mid 100–115°F · Low 90–100°F
Run time About 2 h on high, 4 h on mid, 6 h on low with a 10,000mAh power bank. A bigger power bank runs longer.
Heated zones Backrest and seat, each switched on separately
Power USB, 5V/3A power bank
Power bank Not included
Recline 6 positions
Stays in place 2 built-in hooks clip over the bleacher edge, plus an adjustable strap
Carry Folds flat with padded backpack straps
Storage Side pockets for phone, keys and power bank, plus a drink holder
Fabric 600D waterproof fabric

Games are soo much better now!

“I use this every time I go to my son’s baseball games. Especially here in Canada, those chilly evenings make the heated seat sooo convenient. Easy to carry, comfy, and keeps me warm the whole game!”

Testimonials

  • Comfortable

    “The heating and backrest make long games so much more comfortable. Love having armrests too!”

    Jimmy J

  • So easy to bring along

    “I fold it up, put it on my back, and have my hands free for everything else. The cup holder is handy once I’m seated.”

    Meridith S

  • My favorite part is the heat.

    “Cold evening games are much more enjoyable with a warm seat. The cushioning makes Warmside even better.”

    Jenny G

5.0 / 68 reviews
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Write a Review
  • Sandi Taylor

    Sandi Taylor

    Oct 8, 2026

    Love these so much. They are perfect on a cold night at lacrosse

  • Nick Ellson

    Nick Ellson

    Sep 26, 2026

    Seated in ours now at a HS Football game. Took a second to figure it out without reading directions, cause who does that? I am happy to report the our butts and backsides are neither charcoal nor frost bitten. Heat is very nice.

  • Sara Pereira

    Sara Pereira

    Aug 25, 2025

    I am very impressed with the HOPERAN Heated Stadium Seat. It is well-designed, comfortable, and makes watching games or outdoor events so much better. The heating function works great and keeps me warm even on chilly nights.The double seat size is perfect for extra space or sitting together, and the adjustable reclining positions add a lot of comfort. It also has convenient side pockets and cup holders, which are very useful. The material feels durable and high-quality, and it folds up easily for carrying.This stadium seat has exceeded my expectations. It’s a must-have for anyone who spends time outdoors at games, camping, or events in colder weather.⭐️⭐️⭐️⭐️⭐️

  • Caffeine.HoeCaffeine.Hoe

    Caffeine.Hoe

    May 7, 2025

    Great quality! Super light weight! I didn’t expect the straps to wear like a backpack for easy travel! Good size to fit someone on the bigger side. The reclining options are great and the heating element takes about 5 min to fully heat up but it’s nice to have both back and bottom of the seat! Standard usb cord so definitely bring a battery pack! Even without the heating the seat by itself is still great!If you go to stadiums often this is definitely a must!

  • Yudisbel Rosello

    Yudisbel Rosello

    Apr 24, 2025

    These seats are spectacular, really very comfortable, they fit anywhere, my husband loved them and they are very practical to move around, I highly recommend them.

  • Cynthia Bee

    Cynthia Bee

    Apr 2, 2025

    Great stadium chairs. I love that they can be heated and they are way more comfortable than I expected. Easy to carry as a backpack and easy to open/close and easy to store. Can be a little precarious leaning back if you don't attach them but that is not the chair's fault. I really didn't think I'd want to bother with them but now I don't want to sit on benches unless I have one.

  • joshua nalley

    joshua nalley

    Dec 29, 2024

    We bought these to stay warm on those cold nights watching football games and they far exceeded our expectations.with a big enough battery pack will keep u warm the whole game

  • SusannahSusannahSusannahSusannahSusannahSusannah

    Susannah

    Oct 27, 2024

    We have been using stadium seats for about 7 years now and they have gone to baseball games, wrestling tournaments, basketball games and football games. These are definitely the most well made seats. We have only had them a couple weeks but are super impressed so far. The fabric is thick and durable, zippers are good quality as are the straps. The thickness of the cushions is nice and they don’t smoosh down after sitting on them for a couple hours. I love that there are two different options for keeping the seat from flipping backwards…the straps or the hooks that are hidden inside the zipper section underneath the seat. Love the pocket for the power pack, the drink holder and the extra pocket. We have used them at a couple of cold games and was able to keep them on medium or low and only used about a quarter of the 20k power pack.

  • AlexAlexAlexAlex

    Alex

    Oct 21, 2024

    I like the back support and ability to adjust it if I want lean back a little more. They heated up quickly and seem to project good warmth. I like the backpack feature so we can hold onto rails or carry other things when at competitions. Recommended!

  • Summit Guitar School

    Summit Guitar School

    Oct 19, 2024

    We used at football game and were warm and comfortable. The side pockets are nice for you phone. It reclines but we had people behind us so we didn’t recline much out of courtesy. Sturdy construction and easy to carry.

  • Kristen Estes

    Kristen Estes

    Oct 12, 2024

    I bought the widest armrest option and I’m glad I did, they are much more comfortable when they aren’t digging into your sides. These chairs are very sturdy and just good quality all around. They have lots of random pockets and places for your things. They hook well to the bleacher or you have the option to buckle them underneath if the bleacher doesn’t allow the hooks to latch. The heaters work well and they heat up very quickly. These are a serious game changer when having to sit through outdoor events that are cold. My only negative that I have to say about them is that they are fairly heavy for a bleacher chair. They have backpack type straps that help even the weight out, but if you’re walking very far with them then you may get tired of carrying them. Still…if you are a baseball, softball, football or soccer parent and have to indoor cold weather, do yourself a favor and get you some of these heated chairs.

  • R.D.R.D.R.D.R.D.

    R.D.

    Oct 12, 2024

    I ordered these to use while doing seated work at our plant nursery. Now that the weather is in full fall mode, the heated seats are perfect. The cup holder comfortably fits my 16oz water bottle. I purchased a slim power bank (3" x 5") that when connected fits nicely into the side pocket.I bought the 23" wide size - It fits my husband (6' and waist 34) but in hindsight I think the Super Wide size would have been a better choice.I know we'll use these all fall/winter for work. And then next summer they'll be awesome to take camping and out on the boat!

  • Forever Young Auto Classics

    Forever Young Auto Classics

    Jul 22, 2024

    Light weight, easy to fold.Good quality for the price!Fully satisfied with the purchase!

  • MilixzaMilixzaMilixzaMilixza

    Milixza

    Sep 22, 2024

    In love with these chairs to enjoy my children's games, comfortable, easy to carry, chairs have pockets to put your bottle and to keep your keys or cell phone, we can not forget that the chairs have an exclusive heater button for when the cold arrives, love it!!!

  • Karen MowerKaren Mower

    Karen Mower

    Sep 29, 2023

    I ordered a pair of chairs. The one chair works as described. The second chair does not have a USB power connection. Unable to use heated function due to this. The seller reached out after the concern was found and a replacement chair was sent. The replacement has the correct USB connection. The seller was prompt after they were told about the product defect. Thanks!

  • Billy Gilbert

    Oct 3, 2026

    These are very comfortable and keep you warm. Small battery pack had plenty of power left after 2 hours of use.

  • Erin Rogers

    Sep 22, 2026

    Bleachers hurt my back and these save the day! The heat is pretty subtle but it is usually just enough where we live for when the end of the season starts to cool down.

  • cdf

    Sep 27, 2026

    Heated seats are a lifesaver for chilly games! They will also save your back! Very comfy and work great

  • Love this booster! Works great in our huge house

    Aug 12, 2026

    We loveeeee these! Perfect for long days on the bleachers! Heating works great!

  • Dan Phillips

    Sep 28, 2026

    Could be a little softer.

Reviews from customers of our manufacturing partner.