GrowNYC has organized for clothing and textiles to be collected by Wearable Collections at an array of locations on Saturdays and Sundays.
The Manhattan collection locations and times on Sundays are as follows:
77th/79th Street Greenmarket (77th St between Columbus Ave and Central Park West) from 9am-12:30pm,
Columbia University Greenmarket (Broadway and 116th St) from 9am-12pm,
Tompkins Square Greenmarket (East 7th St and Ave A) from 8:30am-1pm.
For more details, see https://www.grownyc.org/clothing