The
Receipts.
We wanted to know
what was actually going
on down there.
So we checked.
The factory had its certifications. We wanted our own answers.
Our manufacturing partner is BIS certified.
We sent the fabric out for independent testing anyway.
- Sample
- ABSORBENT UNDERWEAR
- Date
- JUNE 2026
- Testing lab
- SITRA + INTERTEK
We checked
the pH.
Your underwear spends a lot of time against your skin. We wanted to know what the fabric measured.
Tested independently at SITRA.
We looked for the nasty stuff.
Restricted azo dyes
Above 5 mg/kg
Black — tested
Beige — tested
OUR TESTING LABS
We made
it sweat.
We tested the colour against sweat.
Acidic. Alkaline. Both.
Then we
added water.
Because apparently underwear has to survive being underwear.
We checked what water does to the colour, and whether it moves onto anything else.
Colour fastness to water · IS/ISO 105 E01:2013
You don't have to take our word for it. Here's the paperwork.
pH
| Result | 6.3 |
|---|---|
| Standard | IS 1390:2022 |
| Lab | SITRA |
| Report | N2601596 |
Restricted azo dyes
| Result | Listed restricted aromatic amines: BDL |
|---|---|
| Detection limit | 5 mg/kg |
| Method | EN ISO 14362-1:2017 |
| Lab | Intertek |
| Reports |
Black TRPA26003486 Beige TRPA26003931 |
Colour fastness to perspiration
| Standard | IS 971:1983 |
|---|---|
| Acidic |
Colour change 4 Staining [ per fibre, from report ] |
| Alkaline |
Colour change 4 Staining [ per fibre, from report ] |
Colour fastness to water
| Standard | IS/ISO 105 E01:2013 |
|---|---|
| Colour change | [ from report ] |
| Staining | [ per fibre, from report ] |
Fastness results are graded on the standard 1–5 grey scale, where 5 means no change and no staining. Staining is graded against each adjacent fibre separately, so those rows go in exactly as the report lists them, one line per fibre. Bracketed fields stay bracketed until the reports are in hand.
Maybe underwear
should have been
doing this
all along.
We check because you shouldn't have to wonder what you're wearing against your skin every day.
Underwear that's good to your skin.