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Quick answer: Two products carry our thermal layering: the Mulberry Silk Long Johns Thermal Underwear Set ($44.99), our top overall seller, as a base layer under regular clothes, and the Winter Warm Fleece Lined Tights ($19.99) as a fleece-backed alternative for skirts and dresses. Neither needs cold weather to buy — both are worth having in a drawer before the season actually turns.
It is mid-July as we publish this, which is exactly the wrong time to tell you it is cold outside. It is close to the right time to mention that thermal layers sell out of popular sizes every year right when the first cold snap hits, and that both of these are listings you can read calmly now instead of scrambling for later.
Why think about this in July
Nothing here is a weather claim. It is a shopping-timing note: our own order data shows the mulberry silk set is already the single most-ordered product in the store since January 1, 2026 — 53 orders, 78 units — almost entirely in the colder months at the start of that window. Sizes and colors that sell out do so fast once demand turns seasonal. Reading the listing now costs nothing and means a decision, not a scramble, later.
The base layer: mulberry silk
Per the listing, this set is 100% mulberry silk knit with a moderate four-way stretch, a close outline built for clean layering, and moisture-wicking properties for use across a range of conditions — city commutes, flights, cabins, and daily office wear. It ships as a long-sleeve top and matching bottoms, in seven colors (Black, Khaki, Beige, Light Pink, Gray, Red, Dark Pink) and sizes XS to XL. The listing’s own layering guidance: start with this as the base, add a midweight knit when the forecast dips, and finish with an insulated shell for wind and snow.
An alternative: fleece-lined tights
The Winter Warm Fleece Lined Tights solve a different layering problem — warmth under a skirt or dress rather than under trousers. The listing describes a fake translucent design: the look of sheer stockings with fleece lining underneath, plus a 6cm elastic high-rise waistband. The fabric is 20% spandex, 73% polyester, and 7% nylon, with a 250g fleece lining. They come in Beige, Brown, Black, or Blue, in Full Length or Ankle Length, across seven sizes (XS to 3XL).
Picking between the two
These are not competing products so much as different layering tools. The silk set goes under trousers, jeans, or our stretch cargo pants for warmth that does not show. The fleece tights go under a skirt or dress and are visible by design — the “sheer look” is the point. If your winter wardrobe leans toward pants, the silk set does more work; if it leans toward skirts and dresses, the tights fill a gap the silk set cannot.
| Product | Price | Best under | Sizes |
|---|---|---|---|
| Mulberry Silk Thermal Set | $44.99 | Trousers, jeans, cargo pants | XS–XL |
| Fleece-Lined Tights | $19.99 | Skirts, dresses | XS–3XL |
Care, before you pack either away
The silk set is machine washable on a gentle cycle with air drying recommended, per the listing. Wash both pieces inside-out to protect the fabric face, and keep them away from high heat, which affects the stretch recovery of both a silk knit and a spandex-fleece blend.
Frequently asked questions
Is it too early to buy thermal layers in July?
Not for shopping — only for wearing. Our own data shows the mulberry silk set is our top seller and moves fastest once the season turns, so browsing sizes and colors now avoids a scramble later; there is no need to wait for cold weather to place the order.
What is the difference between the silk set and the fleece tights?
The silk set is a base layer worn under trousers or pants. The fleece-lined tights are worn under a skirt or dress and are visible by design, with a sheer-stocking look on the outside and fleece lining on the inside.
What is the mulberry silk set made of?
100% mulberry silk knit with moderate four-way stretch, per the listing, in a long-sleeve top and matching bottoms. It comes in seven colors and sizes XS to XL.
What are the fleece-lined tights made of?
20% spandex, 73% polyester, and 7% nylon, with a 250g fleece lining, per the listing. They come in Beige, Brown, Black, or Blue, in Full Length or Ankle Length, sizes XS to 3XL.
How do I build a full layering system?
The mulberry silk listing suggests starting with the silk set as a base, adding a midweight knit as temperatures drop, and finishing with an insulated shell for wind and snow — a simple three-layer system that keeps bulk low.
More guides from Cmfrt Pants
- Mulberry silk long johns — inside our most-ordered product of 2026
- How to wash stretch and cotton cargo pants without ruining the fit
- Our best-selling pants of 2026 — ranked by real orders
- Women’s cargo styles explained — rise, length and cut
Prices and specifications are from the product listings as of July 2026 and may change; see each product page for the latest.