The donation included a range of thermal undergarments, padded jackets and body warmers.
Superglass CEO Ken Munro said: “As the first frosts of winter bite it’s timely to consider those sleeping rough in Scotland. Many people also struggle with fuel poverty and often choose between heating or eating.
“We’re proud to support local charities like Shelter Scotland making a difference in communities across the country.”
Graeme Brown, director of Shelter Scotland, added: “We are grateful to Superglass for thinking of people who are struggling with the cold including households who are in fuel poverty in Scotland and those who are homeless or in bad housing.
“This practical donation of thermal clothing will bring immediate comfort to those who are struggling with the winter weather right now.”