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: Outstanding Value Women's 3 Pair Outstanding Value Wellington Boot Socks
Product description: While wellies are hugely useful and practical, it’s fair to say that they aren’t always the most comfortable or well-fitting of footwear. These Outstanding Value Wellington Boot Socks are designed specifically to address the shortcomings of the wellie, with a thick feel and full cushioning from leg to toe in a high density loop pile that warms and protects. The socks are made from a wool blend for softness and breathability and even feature a gentle grip top that cares for legs by holding without tightness – often only found on higher-priced socks.All wellie wearers should have a pair handy!(06/13)
Product feature: 3 Pair Pack, Gentle Grip tops, Fully terry cushioned, Machine washable at 40, Please note: sizes are U.S. Sizes., ASIN: B00D8CW1VI, Date first listed on Amazon: October 23, 2013, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: Outstanding Value
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None