Adjustable-length garments and methods of use

An adjustable-length garment comprising:

• a downward-hanging portion having an interior side, an oppositely-disposed exterior side, and a variable length extending from an upper end of the downward-hanging portion to a bottom edge of the downward-hanging portion;
• and
• at least a first length adjustment mechanism disposed on the interior side of the downward-hanging portion, the first length adjustment mechanism comprising:
• a channel extending in a vertical direction of the downward-hanging portion;
• a drawstring having an upper portion disposed inside the channel and secured to the downward-hanging portion, the drawstring further having a lower portion disposed outside the channel, wherein extracting at least part of the upper portion of the drawstring from the channel shortens the variable length of the downward-hanging portion at a cinched position of the adjustable-length garment;
• and
• a securement mechanism for securing the lower portion of the drawstring along the interior side of the downward-hanging portion so that the lower portion is hidden and not visible from the exterior side of the downward-hanging portion.