Shoulder-strap retainer apparatus

A shoulder strap retainer for preventing a shoulder strap from falling off a shoulder of a shoulder-strap wearer, said shoulder strap retainer being transferrable from one existing shoulder strap to another and being essentially independent of a width of said shoulder strap, said shoulder strap retainer comprising:

• a) a main retainer body having a first end and a second end, wherein said main retainer body is structurally inelastic;
• b) a contiguous element having a first securing means removably attached to said first end of said main retainer body and a second securing means removably attached to said second end, each of said first securing means and said second securing means located at opposite ends of said contiguous element, said contiguous element being centrally affixed to said main retainer body;
• c) a first retainer end having a first tongue end operatively associated with said first securing means, said first retainer end being axially connected to one end of said main retainer body, wherein said first retainer end is a buckle designed to form an adjustable loop removably placable around a first leg of said shoulder strap;
• and
• d) a second retainer end having a second tongue end operatively associated with said second securing means, said second retainer end being axially connected to a second end of said main retainer body, wherein said second retainer end is a buckle designed to form an adjustable loop removably placeable around a second leg of said shoulder strap,
• wherein when said first retainer end is placed on said first leg of said shoulder strap and said second retainer end is placed on said second leg of said shoulder strap, said first leg and said second leg are drawn toward one another under said shoulder of said shoulder-strap wearer.