There are certainly disadvantages to using gloves, grips or wraps. Gloves can impair your grip because they're between your skin and the bar. They can also reduce your ability to build grip strength — especially if they're thick and inflexible. That's why I recommend using grips that get your skin as close as possible to the bar, such as Barehand gloves for lifting or Bear Grips for rotational movements (such as butterfly pull-ups or toes-to-bar).