The St John Sport By Marie Grey Denim Jacket in size M is a classic and timeless piece for women looking to add a touch of old money style to their wardrobe. Made of durable cotton denim in a solid blue color, this long sleeve jacket is perfect for casual occasions during the fall and spring seasons. The basic jacket style from the reputable St John brand is versatile and can be worn for everyday wear or dressed up for a more polished look.