Straps help grip on heavy pulls, a belt braces heavy squats and deadlifts, sleeves warm the knees, wraps add squat carryover.
The quick answer
Straps save your grip on heavy rows, pulldowns, and deadlifts so your back gives out before your hands, and they are worth using. A lifting belt braces your core on heavy squats and deadlifts above roughly 80 percent effort and lets you brace harder, not a crutch. Knee sleeves add warmth and a little support for squats, while knee wraps are a competition-style tool for maximal squats and not needed by most people.
How to think about it
Straps for grip-limited pulls
On heavy back work and deadlifts, your grip often fails before the target muscle, cutting the set short. Straps let the lats or hamstrings be the limit, so use them on top sets while still training grip separately on some work.
Belt for heavy braced lifts
A belt gives your abs something to push against, raising intra-abdominal pressure and stability on heavy squats and deadlifts. Use it on your top sets, roughly 80 percent and up, and lift beltless on lighter work to keep the core strong.
Sleeves and wraps for knees
Knee sleeves add warmth, blood flow, and a bit of rebound, good for most squatters. Knee wraps are a stiff competition tool that stores elastic energy for maximal squats and are overkill for general training.
Do this
Strap your top pulling setsUse straps once grip becomes the failure point on rows, pulldowns, or deadlifts.
Belt above 80 percentWear the belt on heavy squats and deadlifts and go beltless on lighter accessory work.
Sleeves for warmth and comfortAdd knee sleeves if squats feel better with support, they are safe for regular use.
Skip wraps unless competingLeave knee wraps for maximal powerlifting squats, most lifters do not need them.