Brewed Protein
Bioengineered fiber by Spiber using microbial fermentation to produce spider-silk-like proteins. Petroleum-free and biodegradable.
Score Breakdown
How long the fabric lasts with regular use
Softness, feel against skin, wearability
Air flow and ventilation
Heat retention and insulation
Ability to pull sweat away from skin
Environmental impact of production and disposal
How easy it is to wash, dry, and maintain
Best For
Excellent durability (70) and comfort (78) for office wear
Excellent sustainability (90) and biodegradable — great eco choice
Good breathability (70) and moisture wicking (55) for light activity
Good comfort (78) and care ease (60) for casual wear
Good comfort (78) and breathability (70) for sleeping
Good breathability (70) and comfort (78) for undergarments
Good durability (70) and breathability (70) for outdoor activities
Pros
- ✓ Petroleum-free
- ✓ Biodegradable
- ✓ Programmable properties
- ✓ No animal products
Cons
- ✗ Extremely expensive
- ✗ Very limited availability
- ✗ New technology
Care Guide
Special Notes
• Care varies by application
Additional Care Tips
- • Follow garment-specific label
- • Likely delicate cycle
Cost
$$$$$
Premium
Shrinkage
Minimal shrinkage — follow care instructions
Eco Rating
Strong environmental credentials