PFD (Prepared for Dye) is off-white and chemically treated to absorb dye; Optical White is bleached to a bright white finish; and Scour (Natural) is washed but unbleached, retaining its natural tan color. PFD (Prepared for Dye): This is an off-white fabric that has been treated with a small amount of bleach to create a "blank canvas" for dye absorption. It is the industry standard for custom dyeing or screen printing. Optical White (Bleach): This fabric has been bleached to a true, bright white (similar to printing paper). It is a finished product and does not require further dyeing. Scour / Natural: This fabric is finished to its natural tan hue. While it can be used as-is for an organic look, dyeing it requires special formula adjustments to counteract the natural yellow undertones.

French Terry is a knit fabric with loops on the back and a flat face, while Fleece is French Terry that has had the looped side brushed to create a soft, fuzzy texture. • French Terry: Characterized by its looped back and smooth jersey face. It is breathable and moisture-wicking, making it ideal for activewear. • Fleece: Derived from French Terry. The loops are mechanically brushed (napped) to break the fibers, creating a thicker, warmer, and softer insulation layer.

Knit fabric is made by looping a single yarn (like a T-shirt), making it stretchy and flexible. Woven fabric is made by interlacing two yarns (like a button-up shirt), making it more structured and rigid. • Knits (Made by Greene Textiles): Created by "interlooping" a single set of yarn. This structure allows the fabric to stretch and move with the body. Examples include Jersey, French Terry, Rib, and Thermal. • Wovens: Created by weaving two sets of yarn perpendicular to each other. These fabrics generally do not stretch and are often manufactured overseas. Examples include Denim, Poplin, and Flannel.

Greene Textiles uses "Ounces per Linear Yard" (oz/yd), which weighs a strip of fabric 36 inches long by the full width of the roll. Other common measurements include GSM (grams per square meter) and Oz/Sq Yard. • Ounces per Linear Yard (oz/yd): The weight of a piece of fabric that is 1 yard long (36") x the full width of the roll (e.g., 60"). This is the standard unit used at Greene Textiles. • Ounces per Square Yard (oz/sq yd): The weight of a 36" x 36" square of fabric. This number will always be lower than the linear yard weight. • Grams per Square Meter (GSM): The metric weight of a 1m x 1m square of fabric. This is the global standard for comparing fabric density.