Different from dip belts, weighted belts are affixed to the body and do not use suspended weights or swing. They are useful, like weighted vests, in having weight close to the core and mimic very well the additional weight one might have from body fat stored in the abdomen and lower back. The advantage over other core weights is the flexibility that is freed up by not constraining the upper body, the disadvantage being limited core flexion. There tends to be some overlap in certain larger weighted vests and the region covered by certain larger weighted belts near the upper abdominal muscles.