Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: GearX Men's Half-Sleeve V-Neck Baselayer For Summer
Product description: 'Under layer' is quick to absorb in and emit sweat. 'Under layer' has body shape fitting effect. 'Under layer' keeps warm body temperature. 'Under layer' does not stimulate skin even after vigorous movement. 'Under layer' increases amounts of exercise. 'Under layer' is to have anti-microbial substance Gear X is to have ultra-violet ray-shielding function.
Product feature: 91% Functional Nylon / 9% Polyurethane, 91% Functional Nylon / 9% Polyurethane, Cold water wash / No bleach / No fabric softener / Hang Dry, Icemade / Cools down your body temperature, Antimicrobial technology that reduces odor, UV Block / Ultra-Violet ray-Shielding Function
Product brand: GearX
Target attributes: Neckline
Answer: attribute: neckline
value: v-neck
source: product title