When sourcing rescue suits, you must prioritize material durability and protective functionality. Look for fabrics like Nomex®, Kevlar®, or high-tenacity Ripstop nylon that offer flame retardancy, abrasion resistance, and tear strength. For water rescue, ensure the suit features Gore-Tex® or similar breathable waterproof membranes with a water column rating of at least 20,000mm. Additionally, verify that reinforced padding is present on high-impact areas like knees, elbows, and seat to ensure long-term operational integrity.