What are the differences in all the laces?
The DUO - A 2 weaved lace with no reflectives.
The Reflecto DUO - Is a 2 coloured weaved lace that reflects light in the dark.
The Reflecto TRIO - Is a 3 coloured weaved lace making it appear slightly thicker. Because of the 3 weave it's not as tightly knitted. What this means is when going through smaller holes you may need to pull the laces taut as it can bunch up a litte.