Men's Merino Wool Base Layer Set – Long Sleeve Top and Trousers, Lightweight Stretch, Body-Hugging Fit | Natural
Men's Merino Wool Base Layer Set – Long Sleeve Top and Trousers, Lightweight Stretch, Body-Hugging Fit | Natural
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Description
This men's merino wool base layer set comes in natural, an undyed-look cream that keeps things clean and minimal. This two-piece set pairs a long sleeve top with matching trousers (pants), both made from lightweight, smooth-stretch merino wool. It is designed for comfort and mobility on cold days, outdoor activities and travel, and works equally well as lounge or sleepwear. Part of our Refined Everyday collection, it is designed to be worn often and styled simply.
Key Features
- Two-piece set: long sleeve top and matching trousers
- Lightweight, smooth-stretch merino wool
- Body-hugging silhouette that stays in place as you move
- Flatlock seams for freedom of movement and comfort against the skin
- Natural moisture management and quick drying
- Stain- and wrinkle-resistant for easy care
Fabric & Care
Lightweight merino wool with natural stretch, moisture management and stain resistance. We recommend a cool hand wash or a gentle wool cycle with a mild wool detergent, then reshaping and drying flat away from direct heat. Merino needs washing less often than cotton; airing it between wears is usually enough. Check the care label for full instructions.
Fit & Sizing
A body-hugging fit designed to sit close as a base layer. Available in sizes S, M, L, XL and XXL. Comparing the measurements with a T-shirt you already own is the most reliable way to choose your size.
How to Wear It
In natural, it sits well alongside charcoal, navy or forest green layers, keeping the look calm and coordinated. Use the set as a base layer under walking trousers and a fleece on winter hikes, or wear it on its own as comfortable lounge and travel wear.
Size & fit
Compare your measurements with the size guide beside the size options.
Delivery & returns
Shipping & Delivery Policy
Last updated: 20 October 2026. Ferondo Casmero is operated by ANDRADE COMPANY DIGITAL LLC in the United States and serves customers in the United Kingdom and the United States. Products may be fulfilled by third-party partners and may be shipped from outside your country. Our US business address is not a warehouse. The return destination is the business address stated in our Returns & Refunds Policy; request our prepaid return label and instructions before sending an item.
Where we deliver
We currently deliver to the United Kingdom and the United States only. If your delivery address is outside these countries, no delivery option will be shown at checkout and we cannot accept the order.
Delivery options and estimates
The same delivery options and estimates apply to the United Kingdom and the United States:
- Standard Delivery – free, with estimated delivery in 9–12 working days from order confirmation.
- Express Delivery – £4.99 in the United Kingdom or $6.69 in the United States, with estimated delivery in 3–7 working days from order confirmation.
These estimates include order processing and transit, exclude weekends and applicable public holidays, and are not guaranteed arrival dates. The available option, price and estimate for your basket and delivery address are shown at checkout before payment. If no delivery option is displayed, we cannot accept that order.
Taxes, duties and import charges
For orders delivered to the United Kingdom and the United States, Ferondo Casmero is responsible for applicable import VAT, customs duties, tariffs, customs clearance and other import charges. You will not be required to pay import charges to the carrier on delivery. All prices shown include VAT where applicable. Any sales tax that applies to your order is shown at checkout before payment, and the total displayed before payment is the total amount payable for your order. If a carrier requests an import payment, contact support@ferondocasmero.com with your order number and the request so we can resolve it; do not pay an unexpected charge without contacting us.
Tracking, delays and non-delivery
We will send dispatch confirmation and tracking when available. If an order is delayed, missing or marked delivered but not received, email support@ferondocasmero.com with your order number and any tracking details. We will investigate with the fulfilment provider and provide any remedy required by applicable law. A carrier tracking entry alone does not remove your statutory rights.
Returns
See our Returns & Refunds Policy. We pay return postage and provide a prepaid return label or collection instructions for customers in the United Kingdom and the United States. The return destination is ANDRADE COMPANY DIGITAL LLC, 1160 Heron Sound Dr, Apopka, Florida 32703, United States. Contact us for the label and instructions before sending an item.
Help & policies
Customer Policies
Find the information you need before ordering from Ferondo Casmero.
For help with an order, contact Ferondo Casmero Customer Care.

Men's Merino Wool Base Layer Set – Long Sleeve Top and Trousers, Lightweight Stretch, Body-Hugging Fit | Natural
Size guide · Matching sets
Measure your body and compare it with the general reference below, which follows standard UK, US and EU men’s sizing. Fit varies by style, so also read the Size & fit notes for this piece. Between sizes? For fitted styles choose the larger size; for relaxed and oversized styles, the smaller.
| Size | UK/US chest | EU | Collar | Chest | Waist | Hips |
|---|---|---|---|---|---|---|
| XS | 34 | 44 | 14.5 | 86 | 71 | 88 |
| S | 36 | 46 | 15 | 91 | 76 | 93 |
| M | 38–40 | 48–50 | 15.5 | 99 | 84 | 98 |
| L | 42 | 52 | 16.5 | 107 | 91 | 103 |
| XL | 44–46 | 54–56 | 17.5 | 114 | 99 | 108 |
| XXL | 48 | 58 | 18.5 | 122 | 107 | 113 |
General size reference. If the size names or cut of Men's Merino Wool Base Layer Set – Long Sleeve Top and Trousers, Lightweight Stretch, Body-Hugging Fit | Natural differ, use the product details or contact support@ferondocasmero.com before ordering.
Chest
Measure around the fullest part of your chest, keeping the tape level under your arms.
Waist
Measure around your natural waistline, where you usually wear your trousers.
Collar
Measure around the base of your neck, leaving room for one finger between the tape and your neck. Collar sizes are in inches.
Send us the product name and your measurements at support@ferondocasmero.com. We can help you choose from the sizes shown on this page.
Merino wool
Merino is a fine, soft wool that regulates temperature: warm when it is cold, breathable when it is not. It sits smoothly under a jacket and resists odours, so it needs less washing.
Wash cool on a wool cycle or by hand, reshape and dry flat. Fold rather than hang to keep the shoulders in shape. The exact composition of this piece is listed in its description.
More in merino
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FERONDO CASMERO
Presence, by design.
I
Clean lines.
Silhouettes edited to the essentials, so every piece earns its place in your wardrobe.
II
Considered proportions.
Considered fits, balanced proportions and layers that sit well together, from day to evening.
III
Straight answers.
Free standard delivery on every order and a 30-day refund window, written plainly on every page.