An article of clothing provides workers or users with a modifiable or transformable bottom garment which may be arranged in a functional, work configuration or a more aesthetic, non-work configuration by selectively folding a cover assembly downward or upward relative to the bottom garment. When folded downward, the cover assembly may reveal functional elements such as tool-supporting loops, pockets, etc., and/or may provide an inner surface for the wearer to clean their hands. When folded upward, a pocket is instead formed between the cover assembly and the bottom garment, for the wearer to warm their hands. One or more inserts may be connected to the downward-folded cover assembly to provide additional utilities or functions.