| Size | Forearm Length | Elbow Circumference | Forearm Circumference | Wrist circumference | |||
| S | 21 | 21 | 22 | 15 | |||
| M | 25 | 24 | 25 | 16 | |||
| L | 28 | 27 | 28 | 18 | |||
| XL | 33 | 30 | 38 | 20 |

Jackchains were worn especially during the 15th century. Infantry soldiers not equipped with plate armour, and who instead wore a gambeson, acketon or other form of padded arming jacket, made particular use of them. In combination with a gambeson, jackchains were an economical means of protecting the arms against stabbing. They also permit the wearer full freedom of movement. These jackchains may be fastened to a gambeson with laces fitted with aglets, which are sold separately in our shop in several colours. The jackchains are supplied per pair. This armour is 1 mm thick and is well-suited to LARP battles, theatre, cosplay and costumes.