This back number holder offers space for a number on both the front and back.& The numbers can be easily inserted thanks to the zippers on both sides.& The number holder features adjustable shoulder straps and can be attached at the bottom with an elastic strap with clip.& Number bib with space for a number on the front and backThe numbers can easily be inserted through the front and back zippers& Equipped with elastic shoulder straps& Attaches underneath with an adjustable elastic strap with clip