Hello, lifting straps (weightlifting belts or lifting straps) can cause bad odor along with sweating. This is due to the fact that sweat accumulates on materials such as fabric or leather, leading to the formation of bacteria over time. The smell can be more pronounced especially if used in a humid environment. To prevent odor formation, you can pay attention to these suggestions: 1. Let It Air After Use: Instead of leaving the lifting straps in your bag after training, let it dry in a ventilated place. 2. Regular Cleaning: You can wash the fabric lifting straps with soapy water, then dry them thoroughly. 3. Antibacterial Sprays: You can inhibit bad smells by using antibacterial sprays or naturally odor-preventing sprays. 4. Keep Dry: Dry the straps completely after use. Leaving it damp can cause bacteria to grow. With these methods, you can greatly reduce odor generation. However, if the odors persist, you can wash it by hand or in the washing machine at a maximum of 30 degrees.