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| First Base | 0 | 1 | 2 | 3 | 4 |
| Universal | XS | S | M | L | XL |
| Australia | 6 | 8 | 10 | 12 | 14 |
| USA | 2 | 4 | 6 | 8 | 9 |
| United Kingdom | 6 | 8 | 10 | 12 | 13 |
| Italy | 38 | 40 | 42 | 44 | 45 |
| France | 34 | 36 | 38 | 40 | 41 |
| First Base | 0 | 1 | 2 | 3 | 4 |
metric (centimeters) Bust | 77-81 | 82-86 | 87-91 | 92-96 | 97-101 |
| Waist | 63-67 | 68-72 | 73-77 | 78-82 | 83-87 |
| Hips | 82-86 | 87-91 | 92-96 | 97-101 | 102-106 |
FIRST BASE GARMENTS (TEES, BOTTOMS, DRESSES AND OUTERWEAR) ARE DESIGNED ON THE SLOUCHY SIDE
AND ARE MADE TO BE WORN OVERSIZED. WE WOULD ADVISE YOU GO DOWN A SIZE IF YOU PREFER A FITTED LOOK.
FIRST BASE ACTIVEWEAR IS TRUE TO SIZE AND ARE DESIGNED TO BE WORN TIGHT TO THE BODY.
OUR DESIGNERS AND GARMENT TECHS ENSURE THAT EVERY GARMENT CORRESPONDS TO OUR SIZING CHARTS, SO THAT YOU CAN SHOP ONLINE WITH CONFIDENCE. PLEASE TAKE A MOMENT TO MEASURE YOURSELF TO HELP SELECT THE BEST FIRST BASE SIZE FOR YOU. NO TAPE MEASURE AND NO IDEA? NO WORRIES -
DROP US AN EMAIL CUSTOMER.CARE@THISISFIRSTBASE.COM AND WE CAN TOTALLY HELP GET YOU SORTED.
