Pamela Scott is to close half of its stores with the loss of 104 jobs.
The clothing chain is shutting 12 shops across the country in a bid to secure the company's future.
The shops being closed are Grafton Street, Frascati Centre, Swords and Blanchardstown in Dublin and Cork City, Limerick Crescent, Tralee, Carlow, Sligo, Dundalk, Gorey and Nenagh.
Gift vouchers, credit notes, loyalty cards and deposits will be unaffected by the closures regardless of where the vouchers were purchased.
The shops at Clonmel, Mullingar, Castlebar, Waterford, Newbridge, Wexford, Ennis, Letterkenny, Middleton, Athlone, Navan, Kilkenny, as well as the company’s online business will be unaffected by the restructuring.
Richard Barron, managing director of Pamela Scott, said: "It is devastating to have to close shops and in particular to have to say goodbye to so many of our employees, some of whom have been working for Pamela Scott for decades. Extraordinary times require extraordinary measures and we feel this is the very best way of protecting not just one of Ireland’s oldest and largest fashion chains, but the livelihoods of our remaining 90 employees."