Question 1

How do I convert Lululemon clothing size to Girlfriend Collective?

Accepted Answer

Match by the same size system (letter or waist), then adjust for each line’s fit offset. Example: Lululemon L ≈ Girlfriend Collective L on the shared ladder (draft). Cut still matters more than the label.

Question 2

Is a Lululemon M the same as a Girlfriend Collective M?

Accepted Answer

Not always. Letter and waist labels map differently across brands, and slim vs straight cuts change how a size feels. Use line guides, not brand averages alone.

Lululemon Letter	Step	Girlfriend Collective Letter
XS	0	XS
S	1	S
M	2	M
L	3	L
XL	4	XL
XXL	5	XXL

Lululemon to Girlfriend Collective clothing size conversion

Lululemon → Girlfriend Collective ladder (Letter)

Line fit matters more than brand