I have one of the "Under Armor" arm board thing-a-mabobs.
Works well, retains elasticity,set up pretty well,and fairly inexspensive compared to the other ones with "Tactical" or "Special Forces/Special Operations" attached to the name. Why someone feels the need to charge more for those names in the title of equipment is beyond me. Ridiculous.
UA one is good,inexspensive,and easily replaceable.Fits 3x5 index cards,and you can write on the clear plastic with erasable marker. comes in "Tactical" black too
