Size Guides.
A Note on Sizing
At AUTHORITY, each piece is made-to-order through trusted print-on-demand partners.
Depending on stock and location, your garment may come from different base suppliers. This means measurements can vary slightly between styles, even if the size label is the same.
We include a size chart on each product page wherever possible, but the guides below are a general reference to help you find your best fit.
Tip: If you’re between sizes, go up for a looser fit or down for a closer fit.
How To Measure
Chest/Bust: Measure around the fullest part, keeping tape under the arms and level across the back.
Length: Measure from the highest point on the shoulder to the bottom hem.
Head circumference: Wrap the tape above your ears and eyebrows, keeping it level.
We do our best to match you with the perfect fit, but please keep in mind: all garments are custom printed to order. Small variations (up to 2.5 cm / 1") are normal.
Headwear
Caps: One size fits most — adjustable closure.
Approx. circumference: 54–61 cm / 21¼–24 in.
Need more guidance? Each product page includes extra fit tips and model details so you can choose with confidence.