Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of lululemon athletica inc. (the “Company”) on Form 10-Q for the third quarter of fiscal 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/  CALVIN MCDONALD
	Calvin McDonald
	Chief Executive Officer and Director
	(principal executive officer)

Date: December 6, 2018

By:	/s/  PATRICK J. GUIDO
	Patrick J. Guido
	Chief Financial Officer
	(principal financial and accounting officer)

Date: December 6, 2018

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350 and is not being filed as part of the Report or as a separate disclosure document.