---
product_id: 363377762
title: "Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer"
brand: "grenasasilk"
price: "¥21825"
currency: JPY
in_stock: true
category: "Grenasasilk"
url: https://www.desertcart.jp/products/363377762-grenasasilk-womens-silk-long-underwear-mulberry-silk-long-johns-thermal
store_origin: JP
region: Japan
---

# Thermal base layer warmth 100% pure mulberry silk Breathable & moisture-wicking Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer

**Brand:** grenasasilk
**Price:** ¥21825
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay warm, sleek, and silky — your cold weather game changer!

## Quick Answers

- **What is this?** Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer by grenasasilk
- **How much does it cost?** ¥21825 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/363377762-grenasasilk-womens-silk-long-underwear-mulberry-silk-long-johns-thermal)

## Best For

- grenasasilk enthusiasts

## Why This Product

- Trusted grenasasilk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Second Skin Comfort:** Ultra-soft mulberry silk fabric that feels like a gentle hug all day.
- • **Versatile 2-Piece Set:** Includes top & bottom for complete warmth, ideal for sleep or layering under clothes.
- • **Thermal Warmth Without Bulk:** Lightweight yet highly effective thermal insulation for cold weather layering.
- • **Effortless Care & Durability:** Machine washable on gentle cycle, designed to maintain softness and shape.
- • **Hypoallergenic & Skin-Friendly:** Perfect for sensitive skin with natural anti-static and moisturizing properties.

## Overview

Grenasasilk Women's Silk Long Underwear Set features 100% natural mulberry silk knit fabric, delivering lightweight thermal insulation with exceptional breathability and skin-friendly hypoallergenic benefits. This two-piece base layer set (top and bottom) offers a second-skin fit that keeps you warm and comfortable in cold weather, perfect for layering or sleepwear. Easy to care for with gentle machine wash instructions, it’s a luxurious, practical choice for sensitive skin and cold climates.

## Description

★★★ Silk is one of the best material for underwear,this women's silk long underwear is made of pure natural knit mulberry silk,soft,lightweigh and smoothly,silk is very friendly to your skin,good breathability and moisturizing, and is beneficial for skin health，silk long johns for women will be integrated with you,just like your second skin, keep you healthy and warm,great to be wear alone at home ,or be wear add an extra silk base layer (silk leggings)of warmth under your clothes in cold weather,or as a thermal long johns for sleep.give you a comfortable experience. it's one of your best care.perfect gift choice for your wife, girlfriend, mom, or best friend on birthday, Christmas, Mother's Day, Valentine's Day or other Anniversaries.

## Features

- ★【NATURAL SILK】Silk long underwear for women is made of pure murberry silk knit fabric,ultra soft,lightweigh and smoothly, good breathability and moisturizing.
- ★【SKIN CARE】Silk protein is one of the best underwear materials,this women's long johns is very friendly to your skin,silk is the most hypoallergenic of all fabrics,anti-static properties,the perfect choice for sensitive or allergy-prone skin, take care of your body.perfect gift choice for your wife, girlfriend, mom, or best friend on birthday, Christmas, Mother's Day , Valentine's Day or other Anniversaries
- ★【STYLE】2 Pieces silk thermal underwear sets (Top & Bottom) ,the elasticity of knitted fabrics will be integrated with you,just like your second skin,make you feel free and comfortable,great to be wear add an extra silk base layer of warmth under your clothes in cold weather,or as a thermal long underwear for sleep.
- ★【SIZE OPTIONS】To ensure comfort and a good shopping experience, avoid returns (please ensure suitability for resale),we recommend that you check the style and size details（Refer to size image）before purchasing.
- ★【CARE】 Please use neutral detergent,washes well in machine on gentle or hand wash in normal temperature water ,then air dry.do not use bleach.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09F3K3V4T |
| ASIN  | B0CN9SPJR9 |
| Age Range Description | Adult |
| Apparel Closure Type | Elastic |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #39,936 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #14 in Women's Thermal Underwear Sets |
| Brand Name | Grenasasilk |
| Collection Name | Winter |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,943) |
| Date First Available  | May 7, 2022 |
| Department  | womens |
| Fabric Type | Silk,100% natural mulberry silk long underwear for women |
| Fit Type | Regular |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Import Designation | Imported |
| Item Type Name | Base Layer |
| Manufacturer | Grenasasilk |
| Manufacturer  | Grenasasilk |
| Manufacturer Part Number | XL |
| Material Type | Silk |
| Neck Style | Crew Neck |
| Number of Items | 2 |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Hand Wash or Machine Wash (Gentle Cycle), Air Dry, Do Not Use Bleach |
| Size | X-Large |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Classic |
| Style Number | XL |
| UPC | 798020007801 |
| Unit Count | 1 Set |

## Images

![Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer - Image 1](https://m.media-amazon.com/images/I/31pXbs5V8sL.jpg)
![Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer - Image 2](https://m.media-amazon.com/images/I/31gHu5nHrgL.jpg)
![Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer - Image 3](https://m.media-amazon.com/images/I/31JxSQMTJ1L.jpg)
![Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer - Image 4](https://m.media-amazon.com/images/I/31EsCOIJ0yL.jpg)
![Grenasasilk Womens Silk Long Underwear Mulberry-silk Long Johns Thermal Underwear Sets Cold Weather Base Layer - Image 5](https://m.media-amazon.com/images/I/31U2oxDhuyL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Do I hand wash or dry clean the silk long Johns?**
A: I wash mine by hand.

**Q: Real silk?**
A: They are 100% Silk. Very silky, comfortable and warm.

**Q: Are they supposed to be snug?**
A: I found that they run large.  They should be a snug fit to wear under clothing.  I ordered a medium according to my measurements.  After trying them on, they were very loose.  I returned the medium and ordered a small.  Can't wait to get them.  They are super quality and feel SO SO good.

**Q: How do I return order .**
A: It is so much easier than I thought it would be. No trouble at all. Just follow the instructions that come with the package or look up how to return items in the menu.

## Frequently Bought Together

- Grenasasilk Womens Silk Long Underwear Mulberry Silk Long Johns Silk Thermal Underwear Sets Cold Weather Base Layer
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-25*