Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Thorogood Men's Station 6" Quick Release Safety Boot
Product description: Boot Height: Approx. 6" Tall. Upper: Black Full Grain Leather. Construction: Direct Injection. Outsole: Translucent TPU (Thermo Plastic Urethane). Lining: Non-Woven Nylon. Insole: Total Cushion Arch Support System with Memory Foam, Flex Notches, and Fatigue Mat. Midsole: Removable Polyurethane. Shank: Composite. Special Features: Flexible L-Protection Puncture-Resisting Insole Material. ASTM F 2413-05 M/I/75/C/75 Steel Toe. Electrical Hazard. Tested For and Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard. Meets or Exceeds CAL/OSHA Title 8 Requirements for Foot Safety Toe Protection and Puncture Resistance. Quick Release Elastic Gore. Pull Straps., Since 1892, Weinbrenner Shoe Company has been a leading manufacturer and pioneering force in the American footwear industry, initiating many of the significant safety and job-fitted design elements that are common today. Thorogood footwear is the most trusted brand in the uniform and work industry. All Thorogood American Heritage Work and American Uniform styles are Union-Made in the USA. Their local union has been a proud part of the Weinbrenner Shoe Co. since 1943.
Product feature: 100% Leather, Rubber sole, Electrical Hazard, Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard., Slip Resistant, Puncture Resistant, Steel Toe, Package Dimensions: 14.8 x 12.6 x 5.1 inches, Shipping Weight: 4.5 pounds, ASIN: B001RPCSIY, Item model number: Station, Date first listed on Amazon: February 5, 2009, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 3.5 out of 5 stars 46 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None