Merino is one of the most magical natural fibres in existence. The fine woollen fibres help to regulate body temperature through breathability, water resistance, moisture absorbency (each one can absorb 30% of its weight before it becomes damp) and anti-microbial properties that make it odour resistant. Because we only use pure, super soft, extra fine Merino wool, you get all of those natural benefits whenever you don a Tyrwhitt merino. Blissfully lightweight but wonderfully warm, our Merino knits can be worn whatever the occasion – our huge range of colours and shapes only proves that. Plus, they are all certified by The Woolmark Company, so you can be rest assured that the quality is the very best. And perhaps best of all, they’re a cinch to care for – simply pop it in the washing machine. The Woolmark symbol is a Certification mark in many countries.