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: Dickies Women's Roll-Up Sleeve Shirt, Plaid Evening Blue Rainstorm, XX-Large
Product description: Dickies miss's plaid button front shirt is constructed in lighter weight herringbone dobby weave fabric with full length sleeves that roll up to 3/4 sleeve and secure with a self-tab. The shirt is longer in length for added coverage, has a signature shaped pocket with flap button closure on right chest, and our signature shaped back yoke.
Product feature: 99% Cotton/1% Spandex, Imported, Machine Wash, Lighter weight herringbone dobby weave fabric, Full length sleeves that roll up to 3/4 sleeve and secure with a self-tab, Longer in length for added coverage, Signature shaped pocket with flap button closure on right chest, Signature shaped back yoke, Package Dimensions: 15.1 x 10 x 1.1 inches, Shipping Weight: 8 ounces, ASIN: B00I1AJM82, Item model number: FL066PUM, Date first listed on Amazon: January 25, 2014, Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 2.6 out of 5 stars 3 customer reviews
Target attributes: Fastening Style
Answer: attribute: fastening style
value: button front
source: product description