Decathlon to Bo+Tee leggings size

The short answer

Decathlon 2XS is Bo+Tee XS by the two brands' own charts. 5 of 7 Decathlon sizes land on a different label at Bo+Tee.

Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.

Every Decathlon size read across to Bo+Tee. Letter sizes on the left, Letter on the right.
Decathlon	Decathlon builds it for	Bo+Tee, by chart	Same label	Bo+Tee builds it for	Bo+Tee also prints
2XS	waist 23.6 to 24.8 in, hip 31.1 to 33.5 in	XS	XXS	waist 23.6 to 25.2 in, hip 34.7 to 36.2 in	US numeric 0-2 · UK 4-6
XS	waist 25.2 to 26.8 in, hip 33.5 to 35.4 in	S	XS	waist 26.8 in, hip 37.8 in	US numeric 4 · UK 8
S	waist 27.2 to 28.7 in, hip 35.4 to 37.8 in	M or S	S	waist 28.4 to 29.9 in, hip 39.4 to 40.9 in	US numeric 6-8 · UK 10-12
M	waist 29.1 to 31.1 in, hip 37.8 to 40.2 in	M	M	waist 28.4 to 29.9 in, hip 39.4 to 40.9 in	US numeric 6-8 · UK 10-12
L	waist 31.5 to 33.9 in, hip 40.2 to 42.5 in	XL or L	L	waist 33.1 to 36.2 in, hip 44.1 to 46.1 in	US numeric 12-14 · UK 16-18
XL	waist 34.3 to 36.6 in, hip 42.5 to 44.9 in	XL	XL	waist 33.1 to 36.2 in, hip 44.1 to 46.1 in	US numeric 12-14 · UK 16-18
2XL	waist 37 to 39.4 in, hip 44.9 to 47.2 in	XXL	XXL	waist 38.6 in, hip 48.4 in	US numeric 16 · UK 20

Tinted rows change label or sit between two sizes. Read from the two charts only; no formula and no averaging.

What wearers say

Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.

Open in the converter Add an item you own

Sources

Decathlon size guide, read on 2026-09-18.
Bo+Tee size guide, read on 2026-09-18.

Bo+Tee to Decathlon