O'NEILL Fleece Button Front Shirt Sz M Mint Sage Green Button Up Shacket This O'NEILL Fleece Button Front Shirt in size M features a mint sage green color with a solid pattern, perfect for winter and fall seasons. The shirt has a collared neckline, long sleeves, and a button closure and front pockets for easy wear. Made of polyester fleece fabric, this regular fit button-up shirt is machine washable for convenience. It is a casual piece that offers comfort and style for men looking for a versatile wardrobe staple.