2024 MD Motorcycle Practice Test 11 Based on 2024 MD Motorcycle Handbook 23. What type of material offers the best protection for clothing items, such as jackets? A Wool B Silk C Polyester D Leather Next More 23/30 Progress 0 Errors Restart Next Next MD Motorcycle Practice Test 11 Back to Test List MD Motorcycle Practice Test 10 MD Motorcycle Practice Test 12 Challenge Library 12 More MD Motorcycle Practice Tests 1 MD Motorcycle Practice Test 1 2 MD Motorcycle Practice Test 2 3 MD Motorcycle Practice Test 3 4 MD Motorcycle Practice Test 4 5 MD Motorcycle Practice Test 5 6 MD Motorcycle Practice Test 6 7 MD Motorcycle Practice Test 7 12 MD Motorcycle Practice Test 12 13 MD Motorcycle Practice Test 13 14 MD Motorcycle Practice Test 14