This is a UNIQLO Heattech Cotton Waffle Crew Neck T-shirt (Extra Warm). It looks a bit brighter in the lighting, but it's a slightly darker green. There's no stretching around the sleeves, wrists, or neckline, and it's still in good condition. Please check the photos for the condition and only purchase if you understand that it is a used item. Please refrain from purchasing if you are sensitive to such things. It's great worn under sweaters or sweatshirts, and it's also stylish enough to wear on its own thanks to the waffle material and extra warmth of Heattech. It doesn't look like typical underwear, so it's easy to mix and match, and I recommend it. Thank you for looking.