Leather Weight & Thickness Guide: What Does 1.0mm vs 1.3mm Mean?

The Scale: Understanding Gauge

Leather is measured in millimeters (mm) or ounces (oz).
A 0.1mm difference changes how a jacket drapes, feels, and protects you.
Here is the industry standard breakdown.

0.5mm - 0.8mm (Fashion Weight)

Usually: Lambskin, Sheepskin, Light Goat.
Feel: Like a heavy t-shirt. Extremely soft. Drapes and folds easily.
Usage: Fashion jackets, blazers, women's draped styles.
Protection: Zero. If you fall on concrete, it will shred instantly.

0.9mm - 1.1mm (Standard Weight)

Usually: Cowhide, Buffalo, Goat, Horsefront.
Feel: Substantial but comfortable. Holds its own shape but isn't armor.
Usage: High-end fashion jackets (Schott civilian stats), everyday wear.
Protection: Moderate. Will save your skin in a minor scuffle, but not a highway crash.

1.2mm - 1.4mm+ (Heavy Duty / Competition Weight)

Usually: Steerhide, Heavy Horsehide, Bull.
Feel: Stiff. You can sometimes stand the jacket up on the floor by itself. Requires 3-6 months to break in.
Usage: Motorcycle racing suits, heritage biker jackets.
Protection: Maximum. Designed to slide 50 feet on asphalt without wearing through.