There are a lot of exercises in bodyweight training that require you to hang from the bar. Pull ups, some abs exercises or levers are only a few examples. If your grip strength isn’t sufficient, then you will fail sets because of the grip, not the muscles that should be engaged by the exercise the most and it shouldn’t be that way. But this isn’t the only problem. Even if your grip is strong enough then the skin inside your hands may not withstand the pressure and it starts to hurt and finally tears. It’s a big problem especially in the beginning when your hands aren’t used this kind of effort yet. There’s nothing more frustrating than not being able to train because of this. Gloves are helping in that case by preventing your skin from tearing, because they essentially lower the friction between your hands and the bar. This is both good and bad for your performance. High friction between your bare hands and a bar is a good thing for exercises like pull ups, because it helps you to stay on the bar longer and it makes hanging easier for your forearms. On the other hand, this high friction is also a reason why your skin tears and that’s a pretty bad thing. It can practicaly be compared to getting a minor injury, because you need to take a break from hanging and let the skin heal. Chalk is the opposite of gloves in that regard. Athletes use it before doing a set, because it increases the friction between your skin and the bar, so it’s even easier for your muscles to hang. However it’s also easier to tear your skin if it’s not strong enough because of this very same reason, so you need to be careful with it. In the past, I’ve been using a few different types of gloves, I tried bike gloves, gym gloves and even cheap gardening gloves like these ones. They all seemed to work to some extent, but also shared the same problem. Having a layer of cloth between your skin and the bar makes hanging harder strength-wise, because the grip gets thicker and more slippery Also, when you’re doing long sets or more complex exercises like muscle ups, the gloves keep sliding off your hand or get curled up. The best way to protect your hands I found was using bandages. They’re very thin and you can control how many layers you need. So this is what I actually recommend as far as using gloves goes: if you’re having problems with sore hands from hanging, I recommend having gloves with you, but not using them all the time. Your skin needs to be exposed to the stress to start growing calluses and get thicker. If you would train in gloves all the time, your skin wouldn’t get the impulse to grow. You can start the workout in the gloves and take them off halfway through it. This way you will be able to do everything you’ve planned on doing and exhaust your muscles without tearing the skin, but also slowly get your hands used to this kind of stress. After a few months you’ll have your skin on your hands thick as an elephant, that will be able to withstand a lot of hanging. At this point I don’t recommend using any gloves, because they will just hinder your performance and cause more problems than they solve.