v3.26.1
Document and Entity Information - shares
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Document and Entity Information      
Document Type 20-F    
Document Registration Statement false    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Document Transition Report false    
Document Shell Company Report false    
Entity File Number 001-37385    
Entity Registrant Name Baozun Inc.    
Entity Incorporation, State or Country Code E9    
Entity Address, Address Line One No. 1-9, Lane 510, West Jiangchang Road    
Entity Address, City or Town Shanghai    
Entity Address, Postal Zip Code 200436    
Entity Address, Country CN    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Document Accounting Standard U.S. GAAP    
Entity Shell Company false    
Amendment Flag false    
Entity Central Index Key 0001625414    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Auditor Name KPMG Huazhen LLP KPMG Huazhen LLP Deloitte Touche Tohmatsu Certified Public Accountants LLP
Auditor Firm ID 1186 1186 1113
Auditor Location Shanghai, China Shanghai, China Shanghai, China
ADR      
Document and Entity Information      
Title of 12(b) Security American Depositary Shares, each representingthree Class A Ordinary Shares, par valueUS$0.0001 per share    
Trading Symbol BZUN    
Security Exchange Name NASDAQ    
Class A ordinary shares      
Document and Entity Information      
Entity Common Stock, Shares Outstanding 161,015,878    
Class B ordinary shares      
Document and Entity Information      
Entity Common Stock, Shares Outstanding 13,300,738    
Ordinary shares      
Document and Entity Information      
Entity Common Stock, Shares Outstanding 174,316,616    
Business Contact      
Document and Entity Information      
Entity Address, Address Line One No. 1-9, Lane 510, West Jiangchang Road    
Entity Address, City or Town Shanghai    
Entity Address, Postal Zip Code 200436    
Entity Address, Country CN    
Contact Personnel Name Catherine Yanjie Zhu    
Country Region 86    
City Area Code 21    
Local Phone Number 6080-9991