401 Snow So Fine! Polyester Thread from Superior Threads is the ultra-fine invisible white — 50wt, matte, lint-free, for quilting that melts into the fabric with refined, delicate stitching.
Product Details
- Color: 401 Snow — the purest, coolest white in the So Fine! palette (402 Pearl is the warmer alternative)
- Weight: 50wt filament polyester — finer than 40wt Glide/Omni; matte finish; lint-free
- Spool: 3,280-yard king; the finer weight uses slightly less thread per stitch
- Best for: Heirloom and competition work, white-on-white, dense pantographs, and as a bobbin thread under heavier top threads
- Brand: Superior Threads — So Fine! line
Frequently Asked Questions
- What does 50wt buy over 40wt?
- Smaller, subtler stitches, less bulk in dense fill, and near-invisibility on the surface — the choice when the quilting should disappear entirely rather than show as a line.
- Why do competition quilters reach for it?
- Dense heirloom fills and micro-quilting look more refined in a fine matte thread — the texture reads, the thread doesn't.
- Is it a good bobbin thread?
- One of the most popular — including under heavier decorative top threads, where the fine bobbin side reduces bulk and tension fighting.
- Does the fine weight need tension changes?
- Some quilters back tension off slightly for 50wt; most find it consistent and easy across major longarm brands.
- Snow or Pearl?
- Snow for bright-white fabric and bleached batting; Pearl for warm whites and naturals.
