Inner lining

The inside lining is one of the most important and yet most overlooked aspects of a boxing glove. It's greatly responsible for the glove's comfort and durability.

Good lining:

Prevents your sweat from reaching the padding (breaking it down faster).

The lining should also stay in place and not flop around inside the glove. It's especially annoying it feels like a loose plastic bag inside your glove.

Feels comfortable – smooth and not too grippy (which can cause blisters). This can also be a matter of personal taste. Some like smooth thin inside lining that isn't noticeable. Others prefer a little more texture to have more "grip" inside the glove.

Easy to slide the hand in – some annoying lining (partly due to both material and glove design) makes you have to really loosen the glove to get your hand in/out or else they always catch on your handwraps and push the knuckle padding out of place.