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M&S Men's Medium Thermal Long Johns Black Thermal Underwear M

Marsoni M251S
Sale price$33.20
Pay 4 payments of $8.30 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
M&S Men's Medium Thermal Long Johns Black Thermal Underwear MStay cosy with these cotton blend thermal long johns. Regular fit, offering a medium level of warmth. Made from an insulating brushed back cotton blend that's breathable for extra comfort. Finished with ultra soft seams for snugness. M&S' clever Heatgen technology uses an innovative fibre blend, helping your body to generate and retain heat so you can stay warm when the weather gets chilly. We only ever use responsibly sourced cotton for M&S' clothes.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1613 reviews
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Verified Purchase
Mike Bacon
New York, US
★★★★★ 5
Product great. Delivery not so much.
Scent: Lavender, Size: 30 Count (Pack of 1)
Product works fine. But having it delivered by Amazon in just a brown bag caused the plastic container that holds the product all in the bag. This really need to be shipped in a box. Aleast I can use the product and will have to store it in a Rubber made container.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
T
Verified Purchase
True Reviews By Red
San Leandro, US
★★★★★ 5
Our go-to for RV tank maintenance – reliable
Scent: Pine, Size: 10 Count (Pack of 1), Scent: Pine, Size: 10 Count (Pack of 1)
This has become our go-to brand for maintaining the tanks in our 5th wheel camper. We’ve used several products over time, but we keep coming back to this one because it’s dependable and does exactly what it’s supposed to do. The drop-ins are super easy to use—just toss one in and you’re set. We’ve had no issues with unpleasant odors while using these, even during longer trips, which makes a big difference when you’re living in close quarters. We trust this brand and their products, and it’s one of those items we make sure to always have stocked before heading out.
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Reviewed in the United States on May 1, 2026
S
Verified Purchase
Samantha L Cuellar
Phoenix, US
★★★★★ 5
Not the best of scents for an RV Toilet Tank
Scent: Lavender, Size: 30 Count (Pack of 1)
I don't know why I thought the scent of lavender would be great for my black water holding tank, but it's not. I'm sorry to say that I will have to return it. There's 30 Camco toilet 🚽 treatment packets in this container. All you have to do is just drop one of these packets into the toilet and flush it down into the holding tank. I am not saying that this product is not good; I'm saying that I will have to exchange it for a different scent. I won't know until I try a different scent, because I might be allergic to Camco's RV Toilet Treatment Drop-ins. The lavender scent put out such a bad smell, I couldn't breathe all night last night. I had to keep filling up my tank, waiting for awhile, and then dumping it all out. I had to keep doing that till the bad smell went away. So I'm gonna give Camco another chance, and try a different scent, and just go from there. I should have known better than to use a toilet treatment that had a perfume scent. I'm allergic to fragrant's, I have to use fragrance free laundry soap.
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Reviewed in the United States on February 2, 2026
D
Verified Purchase
DeAnna
Los Angeles, US
★★★★★ 5
Solid, Reliable, and Makes the Gross Job Way Easier
Style: 20' Rhino Sewer Hose
Solid, Reliable, and Makes the Gross Job Way Easier This is hands-down the best sewer hose kit I’ve used. It’s sturdy, easy to connect, and doesn’t feel flimsy like some of the cheaper ones. The clear elbow is a lifesaver because you can actually SEE when everything is done (which every RVer knows matters). The hose holds its shape, stretches exactly as needed, and packs up neatly. If you’re full-time or travel often, this is the one you want.
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Reviewed in the United States on December 5, 2025
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Best hoses out there
Style: 20' Rhino Sewer Hose
Great hoses. Extremely flexible yet sturdy. Manoeuvres around things easy. Perfect thickness without taking up a ton of space. Compatible with alot of accessories offered. No complaints
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Reviewed in the United States on April 20, 2026

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