Velcro patches. Size (per patch): Approximately W55mm x H27mm Hex size: Approximately W115mm x H105mm *Size when 6 patches are combined Patches Velcro DEVISE WORKS Device Works asimocrafts Asimocrafts Asimocrafts NATAL DESIGN ballistics Ballistics Ballistics Mountain Research Snow Peak Helinox thearth oldmountain Old Mountain somabito Somabito BYCRUISE Bycruise sanzokumountain Sanzokumountain neru design works NATAL DESIGN Old Mountain Camp Outdoor Mountain Research 38 explore halftrack products h&o H&O thearth Thearth Makuo M16 LOCKFIELD EQUIPMENT Lockfield GRIND LODGE Grind Lodge Grind Lodge INAVANCE