Large stain on back of left sleeve, see pics

Please see pics for true measurements. The info below is pulled via AI:
• Chest (Pit to Pit): 25.5" (51" doubled)
• Length (Shoulder to Hem): 30"

Brand: TravisMathew
Type: Quarter Zip Pullover
Color: Heathered Tan/Brown
Material: 67% Cotton, 33% Polyester
Neckline: Mock Neck
Sleeve Length: Long Sleeve
Closure: 1/4 Zip
Pattern: Heathered
Fit: Regular
Features: Ribbed Cuffs and Hem, Embroidered Logo
Country of Manufacture: Peru

Keywords: Golf, Athleisure, Casual, Sporty, Outdoor, Layering, Gorpcore, Minimalist, Earth Tones, Preppy, Activewear, Workwear

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