Most brands publish one score for a whole range. Absorbency changes with size, so we test each size separately and show you all four, including the ones that score lower.
Every row is a measured result, not a marketing claim.
| Measurement | S | M | L | XXL |
|---|---|---|---|---|
Weighted score Out of 100, computed from the four criteria | 90.3 | 92.5 | 95.8 | 97.3 |
Absorbency 40% of the weighted score | 88 | 91 | 97 | 99 |
Dryness against skin 30% of the weighted score | 92 | 94 | 95 | 97 |
Fit and comfort 20% of the weighted score | 92 | 93 | 95 | 96 |
Value for money 10% of the weighted score | 91 | 93 | 95 | 94 |
Total absorbency capacity Higher is better | 980 ml | 1240 ml | 1520 ml | 1810 ml |
Surface rewet under load Lower is better | 1.3 g | 1 g | 0.7 g | 0.5 g |
Acquisition time Lower is better | 5.2 sec | 4.4 sec | 3.8 sec | 3.1 sec |
Skin compatible pH Target 5.5 | 5.3 pH | 5.4 pH | 5.5 pH | 5.6 pH |
Report reference Certificate on file | BST-2026-0609 | BST-2026-0611 | BST-2026-0614 | BST-2026-0617 |
Four criteria, weighted. Absorbency carries the most because it is what people actually complain about. Showing size L.
Size L · Report BST-2026-0614 · certified 12 June 2026
Total fluid held before leaking, measured by the Rothwell method. Larger sizes hold more, which is why absorbency rises with size.
Moisture returning to the skin surface under a weighted load, simulating sitting or lying down.
How fast the core pulls fluid away from the surface. Slow acquisition is what causes leaks at the leg seal.
Closeness to healthy skin pH. Sits outside the weighted score but is the main driver of irritation risk.
Every production run is sampled and tested to the same protocol, in the same laboratory, using the Rothwell method for capacity and a weighted load for rewet. Nothing is tested once at launch and then assumed.
If a batch scores below the published figure, it does not ship. That is the whole reason for testing every run rather than every launch.
Complete test certificates and batch records for trade buyers, plan managers, continence nurses and health professionals.
Or shop the tested range