View our sizing charts below. If you're in-between sizes, we recommend sizing up for comfort! If you need more specific sizing help, please email us at help@youunderwear.com.
How to Measure Yourself
Chest band: wrap the tape measure around your body, just under your bust.
Bust: measure the fullest part of your bust.
Waist: measure around your body approximately 5cm below your natural waist where the waistband of trousers normally sit.
Lower hip: wrap the tape measure around the fullest part of your hips and bottom.
Two-Way Strap Bralette:
| Bralette Size |
UK |
Band Width (in) |
Band Width (cm) |
Fits Bra Sizes (Approx) |
| XS |
8-10 |
27" |
68.5 |
30 B/C/D - 32 A/B/C |
| S |
10-12 |
29.5" |
75 |
32 B/C/D - 34 A/B/C |
| M |
12-14 |
32" |
81 |
34 C/D - 36 A/B/C |
| L |
14-16 |
34.5" |
87.5 |
36 C/D - 38 A/B |
More Supportive Bra:
| Bra size |
Chest band measurement (inches) |
Approx. cup sizes |
Approx. UK dress size |
| Small |
28-30" |
C, D, DD |
8- 10 |
| Small + |
28-30" |
DD, E, F |
8- 10 |
| Medium |
32-34" |
C, D, DD |
12-14 |
| Medium + |
32-34"
|
DD, E, F |
12-14 |
| Large |
36-38"
|
C, D, DD |
16-18 |
| Large + |
36-38"
|
DD, E, F |
16-18 |
Women's Thongs, Bikinis, and Boy Shorts:
| UK Sizes |
EU Size |
Waist (in) |
Waist (cm) |
Hips (in) |
Hips (cm) |
| 6 |
34 |
23-24 |
58.5 - 61 |
33 |
84 |
| 8 |
36 |
25-26 |
63.5 - 66 |
35 |
89 |
| 10 |
38 |
27-28 |
68.5 - 71 |
37 |
94 |
| 12 |
40 |
29-30 |
73.5 - 76 |
39 |
99 |
| 14 |
42 |
31-32 |
78.5 - 81 |
41 |
104 |
| 16 |
44 |
33-34 |
83.5 - 86 |
43 |
109 |
| 18 |
46 |
35-36 |
88.5 - 91 |
45 |
114 |
| 20 |
48 |
37-38 |
93.5 - 96 |
47 |
119 |
| 22 |
50 |
39-40 |
99.5 - 101 |
49 |
124 |
Men's Hipster Trunks:
| Size |
Waist (in) |
Waist (cm) |
Clothing Size (approx.) (in) |
Clothing Size (approx.) (cm) |
| S |
31-33" |
79-84 |
30-32" |
76-81 |
| M |
33-35" |
84-89 |
32-34" |
81-86 |
| L |
36-38" |
91.5-96.5 |
34-36" |
86-91 |
| XL |
39-41" |
99-104 |
36-38" |
91-97 |
| XXL |
41-43" |
104-109 |
38-40" |
97-102 |
Girls' Bralettes:
We feel that there isn’t a set size for bodies at different ages, and we don’t want to put any additional pressure on young girls, so our sizing looks a little different. We have 4 sizes, all named after Ugandan towns! We suggest using band width as a starting point, although do get in touch if you have any specific sizing questions.
| Size |
Band Width (in) |
Band Width (cm) |
Fits Ages (Approx.) |
Worn By: |
| Jinja |
23 |
57-58 |
9-10 |
Hollie & Amelia, age 9 1/2,
band with 23"
|
| Kira |
25 |
63-64 |
10-11 |
Help us fill this in ... |
| Lira |
27 |
68-69 |
11-14 |
Liv, age 11.
Phoebe & Flora, age 11 1/2.
Lana, age 13 1/2, 69cm band width,
wears 30B/XS.
Beth, age 14.
|
| Masaka |
29 |
73-74 |
13+ |
Hannah, 32C |
Girls’ Knickers:
| Details |
Waist (in) |
Hips (in) |
Ages (Approx.) |
Women's equivalent size |
| Jinja |
22-23.5” |
25-27” |
7-9 |
4
(EU 32)
|
| Kira |
24-25” |
30-32” |
9-11 |
6
(EU 34)
|
| Lira |
25.5-27” |
34-35” |
11-13 |
8
(EU 36)
|
| Masaka |
27.5-28.5” |
37.5-38.5” |
13+ |
10
(EU 38)
|
126 litres of water
54 grams of carbon dioxide
