Given your specific criteria, here are some fashionable and stylish hairstyle recommendations tailored for straight hair, a square face shape, a professional and sleek fashion sense, a willingness for high maintenance, and suitability for business meetings and formal events: 1. **Long Layers with Soft Waves**: This style adds movement to straight hair. The layers will create a softer look around your square face, while the waves provide a chic touch. It's perfect for a sleek, professional look and can be styled more formally when needed. 2. **Side-Parted Bob**: A classic bob with a deep side part works wonderfully with straight hair and helps soften the angular features of a square face. The side part adds a touch of sophistication, making it ideal for business settings. 3. **Sleek Ponytail with Volume at the Crown**: A high ponytail with some added volume at the crown elongates the face, complementing a square jawline. This hairstyle exudes professionalism and can be easily styled for formal events. 4. **Angled Lob (Long Bob) **: An angled lob that is shorter at the back and longer towards the front can frame your face beautifully, softening the square shape. This cut is versatile, easy to maintain on a day-to-day basis, and can be styled elegantly for formal occasions. 5. **Textured Pixie Cut**: For a bold and chic statement, a textured pixie cut can be stunning. It requires regular maintenance but offers a fresh and professional look. The texture adds a softening effect to square facial features. 6. **Half-Up, Half-Down Do**: This style is both professional and stylish. Pulling the top half of your hair back softens the forehead and jawline while showcasing your straight hair. It's versatile for various occasions. 7. **Soft Fringe with Layers**: A soft fringe can balance the features of a square face, while layers add body and movement to straight hair. This style is sophisticated and can be styled in various ways to suit formal and business settings. 8. **Classic Chignon**: For a more traditional approach, a sleek chignon is perfect for formal events. It highlights the angular features in a flattering way and exudes elegance. 9. **Asymmetrical Cut**: An asymmetrical cut with one side longer than the other can add an interesting visual element while softening the jawline. It’s a modern, fashion-forward choice. 10. **Slicked-Back Look**: A slicked-back style is the epitome of professionalism. It works great with straight hair and can be a striking look for formal events. ** Each of these styles can be tailored to your personal preference and lifestyle. Regular salon visits may be required to maintain these looks, especially for styles like the pixie cut or the asymmetrical lob. Remember, using the right hair products can also enhance these styles and keep your hair healthy. **