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: Boston Bruins Illusion Muted Stripe Polo (White) - XXX-Large
Product description: Please Note: This item is made-upon-order, therefore requires additional processing time, which is reflected in the estimate above. Please Note: The men's garments from this manufacturer tend to run a little large, so if you're between sizes, you should go with the smaller size. 100% polyester Desert Dry Xtra-Lite D2XL short sleeve polo with tonal shiny and dull stripe pattern interlock knit fabric. Flat knit collar, open cuff & 3-button placket Approximate chest measurements: S=34/36, M=38/40, L=42/44, XL=46/48 2X=50/52
Product feature: 100% Polyester, 3-button placket, Embroidered team logo, Officially Licensed, Perfect for Every Fan!
Product brand: Antigua
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: short sleeve
source: product description