Electric guitar gig bags look similar but protect very differently. Padding density — not just thickness — is the deciding factor.
What padding density means
Density is how tightly foam is packed. High-density foam resists impact; low-density foam squashes flat under pressure. Two bags with the same thickness can protect differently.
Reading a spec sheet
- Look for EPE or EVA foam in the spec.
- Ask for density in kg/m3 (20-40 is common; 30+ for pro bags).
- Check neck support — the neck is the weakest point.
Buyer guidance
- Student bag: 10mm low-density foam.
- Mid bag: 15mm medium-density + neck support.
- Pro bag: 20mm high-density + rigid frame.
We build gig bags across all three tiers. Compare our gig bags or ask for density specs on your OEM order.