Shirt size

var shirtWidth = 24;
var shirtLength = 32;
var shirtSleeve = 8.88;

if (
	(18 <= shirtWidth && shirtWidth < 20) && (28 <= shirtLength && shirtLength < 29) && (8.13 <= shirtSleeve && shirtSleeve < 8.38)) 
{
	console.log("S");
}
else if (
	(20 <= shirtWidth && shirtWidth < 22) && (29 <= shirtLength && shirtLength  < 30) && (8.38 <= shirtSleeve && shirtSleeve < 8.63)) 
{
	console.log("M");
}
else if (
	(22 <= shirtWidth && shirtWidth < 24) && (30 <= shirtLength && shirtLength  < 31) && (8.63 <= shirtSleeve && shirtSleeve < 8.88)) 
{
	console.log("L");
}
else if (
	(24 <= shirtWidth && shirtWidth < 26) && (31 <= shirtLength && shirtLength  < 33) && (8.88 <= shirtSleeve && shirtSleeve < 9.63)) 
{
	console.log("XL");
}
else if (
	(26 <= shirtWidth && shirtWidth < 28) && (33 <= shirtLength && shirtLength  < 34) && (9.63 <= shirtSleeve && shirtSleeve < 10.13)) 
{
	console.log("2XL");
}
else if (
	(shirtWidth === 28) && (shirtLength === 34) && (shirtSleeve === 10.13))
	/*or you could use
	(28 <= shirtWidth && shirtWidth < 30) && (34 <= shirtLength && shirtLength  < 36) && (10.13 <= shirtSleeve && shirtSleeve < 10.38))*/
{
	console.log("3XL");
}
else {
	console.log("N/A");
}