The importance of wearing protective clothing when working with pesticides is discussed here, as is the importance of careful laundering of that clothing. Pesticide safety procedures always emphasize reducing potential human exposure.
Pesticides can enter the body through the mouth, the respiratory system and the skin.
The greatest amount of pesticide enters the body by absorption through the skin. Covering the body can reduce exposure to pesticides. Use protective clothing and equipment to reduce skin exposure. Use the pesticide label as a guide to which chemicals are more toxic. Hazards are less pronounced in handling clothing exposed to low toxicity pesticides.