The picture makes it hard to tell, but the neckline is not very low at all.
If wearing a tie underneath, only the knot will show whereas other V-neck sweaters will give [at least] a 3-inch low gap to space for tie and shirt visual.
π Nantersan Placket Raglan Tee - A Casual Must-Have
52 Review
Gildan Performance Men's π Clothing and Shirts with Moisture-Wicking Polyester
44 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
Men'S Regular Fit Short-Sleeve Dress Shirts By Allsense - Look Stylish And Professional!
41 Review