Here are a few educational links to the primary research, inspired by this image: http://urd.priv.no/viking/smokkr.html, http://www.darkcompany.ca/beads/beads.php, http://www.medieval-baltic.us/vikbuckle.html,http://medieval-baltic.us/bau-loops.pdf
There are several problems with concepts presented in this reconstruction of the Mammen clothing. Check the literature (a NESAT had a good article I believe) finally out from the archives after 20 years. The National Museum of Denmark, Viking exhibition
Reconstruction of warrior coat based on illustration of Taplow princely burial reconstruction within Penelope W. Rogers, Cloth and Clothing in Early Anglo-Saxon England, decorated with braid from Snartemo, Norway. Photograph courtesy D.