Knit Silk

100% Mulberry Silk · Knit Construction · No Spandex · No Synthetic Blend · OEKO-TEX Standard 100 Certified · Chemical-Free Dyes

Silk with stretch — without any synthetic fiber to achieve it.

Most "stretchy silk" on the market blends silk with spandex or elastane to get the give. More Sunday's Knit Silk collection is different: it's 100% Mulberry Silk, woven in a knit construction that creates natural stretch through the structure of the weave itself. No plastic fiber. No synthetic blend. Just silk, moving the way your body does.

The result is the softest thing most people have ever worn. Where woven silk satin is smooth and cool, knit silk is all of that — plus a fluid drape that recovers beautifully, never stiffens, and feels genuinely weightless against skin.

Why this matters for sensitive skin: Synthetic fibers trap heat and moisture against the body. They can also carry residual chemical treatments — phthalates, azo dyes, PFAS finishes — that absorb more readily when skin is warm. The Knit Silk collection is OEKO-TEX Standard 100 certified, meaning independently tested against over 100 harmful substances. Chemical-free dyes. No hidden treatments. The gentlest possible fabric against your skin — with the comfort of stretch.

Ideal as a base layer under anything that might otherwise irritate sensitive skin. Equally at home as standalone sleepwear, loungewear, or a travel essential that packs into nothing and arrives wrinkle-free.

All pieces are 100% biodegradable — no microplastic shedding, no synthetic fiber residue. Real silk, from start to finish.