Christmas Closure 2025
The Love Luna team is taking a much needed break over Christmas and New Year to rest and recharge. We will be closing our office and warehouse from Wednesday, December 24th 2025 and will re-open on Monday 5th of January 2026.
We welcome you to continue shopping through our online store as normal, enjoying all your Luna favourites and taking advantage of those exciting final promotions of 2025, expecting slight shipping and processing delays. All orders placed within the above window will be processed from Monday 5th of January 2026.
For any general questions and queries, our emails and dm’s are always open and we will do our best to be in touch as soon as we can (in between enjoying the sunshine). We thank you for your understanding, patience and support.
Size Guides
Style Guide
Don't know your size? No stress! We have this handy size chart to help you find the perfect size so you feel confident and comfortable in your Love Luna Briefs. Catering in sizes from size 6 to size 28 (new, extended sizing!).
We strive to align our garments sizing with all other similar products. For example, whatever size underwear you normally wear, we would recommend you buy the same size in our period underwear. If you are unsure what size you (or your child) are, we recommend you measure around your waist (smallest part, usually at the belly button) and around hips (largest part) and use those measurements (in cms) to compare to our size guide.
Please note: all FIRST styles are made in YOUTH/JUNIOR sizes
Adult Briefs
| SIZE | 6/8 | 8/10 | 10/12 | 12/14 | 14/16 |
|---|---|---|---|---|---|
| WAIST (cm) | 60 | 65 | 70 | 75 | 80 |
| HIPS (cm) | 88 | 93 | 98 | 103 | 108 |
| SIZE | 16/18 | 18/20 | 20/22 | 22/24 | 24/26 | 26/28 |
|---|---|---|---|---|---|---|
| WAIST (cm) | 86 | 92 | 98 | 104 | 110 | 116 |
| HIPS (cm) | 114 | 120 | 126 | 132 | 138 | 144 |
FIRST by Love Luna Size Guide (Junior Sizes)
For example, if your child’s waist is 60cm, they would roughly fit into the FIRST Australian size 8-10, UK size 10-11, USA size 8.
If the child is larger than size AUS size 14-16, we recommend going into our women’s range.
The next size up from AUS Youth 14-16 would be the Women’s AUS size 10-12.
| AUS SIZE | 6/8 | 8/10 | 10/12 | 12/14 | 14/16 |
|---|---|---|---|---|---|
| UK (yrs) | 8–9 | 10–11 | 11–12 | 12–13 | 13–14 |
| USA | 6 | 8 | 10 | 12 | 14 |
| WAIST (in) | 23" | 24" | 25" | 26" | 27" |
| WAIST (cm) | 57–59 | 59–61 | 61–63 | 63–66 | 66–69 |
| JUNIOR SIZING | 8/10 | 10/12 | 12/14 | 14/16 |
|---|---|---|---|---|
| LADIES EQUIVALENT | N/A | 4/6 | 6/8 | 8/10 |
Adult Swimwear
| AUS SIZE | 8/10 | 10/12 | 12/14 | 14/16 | 16/18 | 18/20 | 20/22 |
|---|---|---|---|---|---|---|---|
| UNDERBUST (cm) | 63–72 | 68–77 | 73–82 | 78–87 | 83–92 | 88–97 | 93–102 |
| BUST (cm) | 80–84 | 85–89 | 90–94 | 95–99 | 100–104 | 105–109 | 110–114 |
| WAIST (cm) | 61–65 | 66–70 | 71–75 | 76–80 | 81–85 | 86–90 | 91–95 |
| HIPS (circumference cm) | 86–90 | 91–95 | 96–100 | 101–105 | 106–110 | 111–115 | 116–120 |
FIRST Swimwear (junior sizes)
| AUS SIZE | 6/8 | 8/10 | 10/12 | 12/14 | 14/16 |
|---|---|---|---|---|---|
| CHEST (cm) | 60–65 | 65–70 | 70–75 | 75–80 | 80–85 |
| HEIGHT (cm) | 110–115 | 120–130 | 130–140 | 140–150 | 150–160 |
| WAIST (cm) | 57–59 | 59–61 | 61–63 | 63–66 | 66–69 |
| HIPS (cm) | 60–65 | 65–70 | 70–75 | 75–80 | 80–85 |
Sleepwear
| SIZE | XS | S | M | L | XL |
|---|---|---|---|---|---|
| CHEST (cm) | 102 | 107 | 112 | 117 | 122 |
| WAIST (cm) | 54 | 56 | 58.5 | 61 | 63.5 |
| HIPS (cm) | 33.5 | 33.5 | 38 | 40.5 | 43 |
Nursing Pads
| B | C | D | DD | E | |
|---|---|---|---|---|---|
| 10 | S | S | S | M | M |
| 12 | S | S | M | M | L |
| 14 | M | M | M | L | L |
| 6 | L | L | L | L | L |