Cover - shares	9 Months Ended
	Sep. 30, 2021	Nov. 09, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-40825
Entity Registrant Name	Warby Parker Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0423634
Entity Address, Address Line One	233 Spring Street
Entity Address, Address Line Two	6th Floor East
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10013
City Area Code	646
Local Phone Number	847-7215
Title of 12(b) Security	Class A Common Stock, $0.0001 par value per share
Trading Symbol	WRBY
Security Exchange Name	NYSE
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		113,182,975
Entity Central Index Key	0001504776
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31