According to Official Guinness Records,
The most clothes collected in 24 hours weighs 56,934 kg (125,517 lb 15.9 oz) and was achieved by the Youths Kuwait (Kuwait), in Kuwait City, Kuwait, from 30 to 31 January 2015 Adjudicated by Seyda Subasi Gemici
For a complete list of 1915 records, please visit 1915 Guinness Records in Kuwait.