v3.25.2
COVER
6 Months Ended
Jun. 30, 2025
Cover [Abstract]  
Document Type 6-K
Document Period End Date Jun. 30, 2025
Entity File Number 001-41943
Entity Registrant Name Amer Sports, Inc.
Entity Address, Address Line One Cricket Square, Hutchins Drive
Entity Address, Address Line Two P.O. Box 2681
Entity Address, City or Town Grand Cayman
Entity Address, Postal Zip Code KY1-1111
Entity Address, Country KY
Entity Central Index Key 0001988894
Amendment Flag false
Current Fiscal Year End Date --12-31
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2025