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: Vans Sk8-Hi MTE Skateboarding Sneaker Tornado/Atlantic Deep (10 B(M) US Women / 8.5 D(M) US Men)
Product description: Vans The Sk8-Hi MTE revamps the legendary Vans high top with additions designed for the elements. Premium Scotchgard-treated leather and suede or textile uppers, warm flannel linings, and a heat retention layer between sockliner and outsole keep feet warm and dry while the newly-constructed vulcanized lug outsole takes advantage of 20 years of snow boot history for maximum traction. The Sk8-Hi MTE also features re-enforced toecaps to withstand repeated wear and padded collars for support and flexibility.
Product feature: Suede, Vans Premium Scotchgard-treated leather and suede upper, Warm flannel linings, Heat retention layer between sockliner and outsole keep feet warm and dry, Re-enforced toecaps to withstand repeated wear, Padded collars for support and flexibility., Package Dimensions: 12.4 x 8.5 x 4.8 inches, Shipping Weight: 2.69 pounds, ASIN: B01DX6U1MY, Item model number: VA33TXLZO, Date first listed on Amazon: October 5, 2016, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: Vans
Target attributes: Style
Answer: attribute: style
value: vans
source: product title
attribute: style
value: vans
source: product feature
attribute: style
value: vans
source: product description
attribute: style
value: vans
source: product brand