Belts, sleeves, wraps, and shoes are tools, and like any tool they help when used right and become a crutch when leaned on too hard. Supportive gear can let you train heavier and protect your joints, but it does not replace building real strength and good technique. Here is how to use it well.
The Belt
A lifting belt is the most useful piece of gear for most powerlifters. It gives your core something to brace against, which can let you produce more force and support your spine under heavy loads. Use it for your heavier sets on squats and deadlifts, but do not wear it for everything. Training some of your lighter work without a belt keeps your core doing its job and building real strength.
Sleeves, Wraps, and Shoes
Knee sleeves keep your joints warm and offer light support, which many lifters find helps their knees feel better under heavy squats. Wrist wraps support the wrists on heavy benching and overhead work. Knee wraps offer more aggressive support for maximal squats but are best saved for heavy attempts. A solid pair of lifting shoes gives you a stable base, and the right heel can improve your squat depth and position. Pick gear that matches your lifts and your federation rules.
Tools, Not Crutches
The trap is letting gear cover for weaknesses you should be fixing. If you cannot brace without a belt or your knees only feel safe wrapped, that is a signal to build more raw strength and address the underlying issue. Use gear to train harder and protect yourself on heavy work, but keep building the strength that does not depend on it. The gear should add to a strong lifter, not prop up a fragile one.
Use a belt for heavy work, choose sleeves, wraps, and shoes that fit your lifts, and never let the gear replace real strength. Used as tools, they help you train heavier and stay healthy. Leaned on as crutches, they hide problems you will pay for later.