Adding a stylish nautical theme to a pea coat, raincoat or any other jacket featuring a belt, the square knot is simple and quick to hitch up. Square knots -- also known as hitch or reef knots -- can be found in sea-themed bracelets, necklaces and other jewelry, but you can also bring this look into the rest of your wardrobe. Tying a coat's belt into a square knot requires little practice, is secure and adds visual interest to even the most basic of outerwear.
Extend both ends of the belt across your waist, parallel with one another.
Cross the left and right ends upward, forming a "V" shape.
Fold the end in your left hand down. Flip it back up over the top of the section of belt in your right hand. Viewed in a mirror, the knot now resembles a "W."
Touch the tips of the belt together at the top, forming a circular shape when viewed in the mirror.
Slide the end in your left hand underneath the one in your right. Do the same for the other end.
Pull the ends tight, locking the two ends of the belt together.