I recently tried some SR4U laces in neon yellow on my Nike Tiempos. The yellow didn't quite match the volt on the boot. The laces seemed really flimsy and not well made. Even the SR4U logo on the tips didn't match up and was half covered by the wrap on the tips. When they arrived it was basically laces wrapped with brown paper and scotch tape. It all just seemed very cheap to me. I'll be looking for new laces for my other boots.