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: Andrew Christian Men's Trophy Boy Boxer Brief
Product description: The trophy boy boxer was made for the well endowed man who wants to show it off and be comfortable at the same time! the new, bright trophy boy iconic waistband announces your well-endowed status. This boxer is very similar to our almost naked style with even more room in front, just where you need it. The anatomically correct brief features bright contrast fashion detailed leg openings. When you pull them on feels like you're not wearing any underwear at all! your package falls naturally into the super soft snuggle pouch to create a truly enjoyable and unique wearing experience. It virtually eliminates sticking, squashing, re-adjusting, sweating and chafing. We've also updated the colors to sexy black and cool aqua, making it more eye-catching than ever
Product feature: 93% Rayon From Bamboo, 7% Spandex, Imported, Machine Wash, Iconic waistband...lets everyone know you are a trophy boy, Made for guys that are hung, Similar to our almost naked collection with larger pouch, Hang-free design with no hidden cups or padding, Feels like you're not wearing any underwear at all, Package Dimensions: 7.2 x 5.9 x 0.8 inches, Shipping Weight: 2.4 ounces, ASIN: B01CPZGSOY, Item model number: 9961, Date first listed on Amazon: March 8, 2016, Average Customer Review: 4.7 out of 5 stars 5 customer reviews
Target attributes: Silhouette
Answer: attribute: silhouette
value: boxer brief
source: product title