DayZ field wiki · Gear
Sewing
Cloth wants a kit
Short answer
Jackets dump insulation when they hole. A sewing kit is warmth you can pack.
Also: sewing kit
How it works
Sewing kits and leather kits exist. They are not duct tape. They are not a gun.
What to do
Fix layers on Sakhal before you fix a souvenir.
Don't
Don't invent stitch counts.