Interlock Knit
Double-knit jersey fabric where two rib knit layers are interlocked together, creating a thicker, smoother, and more stable fabric than single jersey. Both sides look identical, making it fully reversible.
Material Score Breakdown
7-axis material rubric, not a garment verdict — see disclosure below.
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
Products with interlock knit
We don't have any interlock knit products in our catalog yet — it's a rare natural fiber. Here are top-rated natural alternatives:
Merino Cardigan
100% Merino Wool
Merino Long-Sleeve Sweater Polo
100% Merino Wool
Merino Sweater
100% Merino Wool
Merino Johnny-Collar Sweater Polo
100% Merino Wool
Slim Merino Ribbed Sweater
100% Merino Wool
Merino Crew-Neck Sweater
100% Merino Wool
What this score doesn't measure
This is a material rating, not a verdict on any specific garment made from interlock knit. The axes above are research-backed averages for the fiber itself.
- ×Construction. Yarn staple length, weave / knit structure, stitch count, finishing. Identical fiber, very different garments.
- ×Fabric weight (GSM). A 140 GSM tee and a 220 GSM tee made of the same interlock knit feel and last very differently.
- ×Dye + finishing chemicals. Beyond the three we flag (PFAS, formaldehyde, antimony), dozens of textile finishes aren't modelled.
Best For
Excellent comfort (75) and easy care (72) for daily wear
Excellent durability (70) and comfort (75) for office wear
Good comfort (75) and breathability (65) for sleeping
Good durability (70) and breathability (65) for outdoor activities
Detailed Use Case Scores
Pros
- ✓ Smoother and more stable than single jersey — no curling edges
- ✓ Thicker and warmer than standard jersey
- ✓ Both sides identical — reversible and no wrong side
- ✓ Less prone to snagging and runs than single knits
Cons
- ✗ Heavier than single jersey — not ideal for hot weather
- ✗ Less stretch than single jersey — slightly less drape
- ✗ More expensive than standard jersey due to double knit construction
- ✗ Can be too thick for lightweight summer garments
Better alternatives
Higher-scored natural materials. Same category — what to consider instead.
+26 vs Interlock Knit · 92/100
BiodegradableThe rarest and most expensive animal fiber in the world, from the vicuña of the Andes. Finer than cashmere, incredibly soft, warm, and lightweight. A single coat yields only 250g of usable fiber every 2-3 years.
+20 vs Interlock Knit · 86/100
BiodegradableUltra-fine wool from Merino sheep. Softer and less itchy than regular wool, with excellent temperature regulation and moisture management.
+16 vs Interlock Knit · 82/100
BiodegradableExtra-long-staple cotton historically grown in the West Indies (Barbados, Jamaica) and Sea Islands of Georgia/South Carolina. Among the rarest commercial fibers on earth — staple length up to 2.5", silky hand feel, intense color saturation when dyed. Used in heritage luxury shirting and bespoke menswear.
Care Guide
Special Notes
• Holds shape well — easy care knit
Additional Care Tips
- • Machine wash warm (40°C/105°F) on normal cycle
- • Tumble dry on low heat — interlock holds shape well
- • Low iron if needed (150°C/300°F) — usually not required
- • Can be bleached if white cotton — avoid on colors
Cost
$$$$$
Budget-friendly
Shrinkage
Minimal shrinkage — follow care instructions
Eco Rating
Moderate impact — consider eco alternatives