Hi y'all. I'm posting because I'm looking for an 18mm watch strap for my son, who has very large wrists. The regular bands would never fit him, or come even close. What do you guys do for large bands? BTW, he hates those expanding metals ones that pull out his wrist hairs. This is for a watch my hubby and I are buying him for his birthday, so any help would be greatly appreciated. Thanks!