Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Sanuk Men's Mainsteez Boat Shoe
Product description: New No-Ledge profle Felt lace up with embossed suede heel, suede mudguard, and funk textile lining High rebound, molded premium EVA footbed featuring AEGIS antimicrobial additive Happy U rubber outsole
Product feature: 100% Wool, Poly, Leather, Imported, Rubber sole, Felt lace up with embossed suede heel suede mud guard and funk textile lining, Package Dimensions: 12.9 x 6.8 x 3.3 inches, Shipping Weight: 4.2 pounds, ASIN: B00HI18VPK, Item model number: Mainsteez, Date first listed on Amazon: April 24, 2014, Domestic Shipping: Item can be shipped within U.S., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 4.5 out of 5 stars 15 customer reviews
Target attributes: Type
Answer: attribute: type
value: shoe
source: product title