The mother of one young child has worked there for almost a decade, also supporting her extended family on her monthly salary of $160 (£120).
Lesotho has become known as the “denim capital of Africa”. The country’s garment factories also produce jeans for iconic American brands such as Levi’s and Wrangler.
But the uncertainty over the future of the country’s clothes industry is one reason why Lesotho declared a national “state of disaster” earlier this month in order to speed up job-creation.
She says workers have been told that the firm “can close any time from now”.
“They say it’s about a tariff,” she says.
In the meantime, Ms Seleso and her colleagues have been told to work for two weeks a month, meaning they get just half the pay.