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: ECCO Men's Biom Hybrid Textile Golf Shoe White Melon 44 M EU / 10-10.5 D(M) US
Product description: A retro-inspired, sneaker-style shoe for the casual golfer who wants to get the most from their game. Upper is a combination of fabric and rich ECCO Yak leather for a superb look and feel. Soft and breathable textile lining ensures a flexible fit, allowing feet to feel fresh and dry in all weather conditions. Choice of two coloured laces creates a casual or more formal look on the course.
Product feature: Leather, Leather and Synthetic, Anatomically-shaped insole unit, Water-repellant upper, This sophisticated golf shoe from ECCO., Molded traction cleats Flexible sole, Package Dimensions: 14.3 x 8.4 x 5.2 inches, Shipping Weight: 2.5 pounds, ASIN: B00EPIUYYU, Date first listed on Amazon: January 22, 2017, Average Customer Review: 4.0 out of 5 stars 1 customer review
Target attributes: Style
Answer: attribute: style
value: casual
source: product description