[Illustration: FIG. 24. Figure wearing Jack (from _Chasse of S. Ursula_, by Memling, 1475-85, Bruges).] Although lighter and more pliable defences than the cuirass, the brigandine and jack were very effectual for protection against arrows, for we find, according to Walsingham,[71] that the rioters under Wat Tyler shot at a jack belonging to the Duke of Lancaster, but were unable to damage it, and eventually cut it to pieces with swords and axes. The jack or canvas coat of Sir John Willoughby, _temp._ Elizabeth, now at Woolaton Hall, is formed of stout canvas inside and out stuffed with two layers of tow with horn discs in between. The whole is kept together by a series of lacings which appear on the outside as lines and triangles of the same kind as those shown on Fig. 25. It is composed of six panels, two for the breast, two for the back, and two small ones for the shoulders. A portrait of Willoughby in the Painted Gallery at Greenwich shows such a jack with red cords. The jack was generally lined with metal plates and examples of this may be seen in the Tower (III, 335, 336). These are also made up of six panels and weigh about 17 lb. each. They are composed of about 1164 metal plates[72] (Fig. 25). In the Shuttleworth accounts published by the Chetham Society are to be found entries of 9¼ yards of linen to make a “steel coat,” a pound of slape or pitch, two dozen points or laces for two coats, and 1650 steel plates. The cost of the coat, inclusive of making, would come to about £1. A cap, constructed in the same manner of small plates, is shown in the Burges Collection at the British Museum and is figured in the _Guide to the Mediæval Room_ on page 62. [Illustration: FIG. 25. Construction of Jack. A. Outside. B. Plates with cover and cords removed.] [Illustration: FIG. 26. Brigandine at Vienna, No. 130.]