Is this a top and bottom? shirt and pants?

Yes it’s a shirt and pants. You wear them uber your clothes to keep you warm. My husband says they are awesome and keeps him warm.

What size should I order if my boyfriend is a large shirt but usually a small/med in underwear

Just my opinion, I would get a Medium-Large. Pajamas are usually big for their stated size; however, you want more of a tight fit with thermal underwear as to keep the heat in, and usually warn under regular clothing. So I would say medium. Everything fits differently, but I would say the medium would be a better choice under a large shirt.

this is fleece lined?

It is not "fleece" material - however, the warmth is similar to that but is instead a form fitting base layer. I wear these under pants during New England winter temperatures and it is just as warm as smartwool. I also wear them under my motorcycle gear during this season too. These are a great product and worth way more than $20!

I wear 36 pants L but the size chart wierd what size do i get ? the chart size 3xl that big ?im L 36 help ?

Im 36 waist myself but my upper body is xxl because im 6'1" so is the size i gotten and it fits snugg all the way around because its stretchy material and here in new england its really cold and im in the snow clearing team , i luv this material it keeps me warm and dry ,hope this helps

Herobiker Mens Classic Base Layer

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Description

❄️ Stay Warm, Move Smart, Look Legendary ❄️

MOVE FREELY LOOK SHARP - Four-way stretch compression sculpts your silhouette and supports dynamic winter activities with zero restriction.
SEAMLESS COMFORT ALL DAY - Flatlock stitching eliminates chafing, making it perfect for long hours on the slopes or city streets.
TRUSTED FIT DURABILITY - Consistently praised for perfect sizing and lasting quality, this set is your go-to for every cold-weather adventure.
VERSATILE WINTER ESSENTIAL - Designed for skiing, cycling, running, or just powering through cold commutes—wear it solo or as a sleek base layer.
NEXT LEVEL WARMTH WITHOUT BULK - Premium silky-soft lining traps heat while staying breathable—no more overheating or chills.

HEROBIKER Men's Classic Base Layer is a lightweight, high-stretch thermal underwear set crafted from 90% ultra-soft polyester and 10% spandex. Engineered with breathable, moisture-wicking fabric and flatlock seams, it delivers exceptional warmth and comfort for winter sports and everyday cold-weather wear. Available in multiple sizes, this compression-fit set enhances mobility while maintaining a slim profile, making it a top-rated choice for active professionals seeking performance and style.

Specifications

ASIN	B075WSFLDC
ASIN	B0CCT679NB
Age Range Description	Adult
Apparel Closure Type	Pull On
Apparel Fabric Stretch	High Stretch
Apparel Fabric Weight Class	Lightweight
Best Sellers Rank	#5,209 in Fashion ( See Top 100 in Fashion ) #5 in Men's Thermal Underwear Sets
Brand Name	HEROBIKER
Collection Name	Winter
Color	Black
Customer Reviews	4.6 4.6 out of 5 stars (14,621)
Customer reviews	4.6 4.6 out of 5 stars (14,621)
Date First Available	11 July 2019
Department	Men
Fabric Type	90% ultra-soft polyester 10% spandex
Fit Type	compression
Fit to Size Sentiment	Positive
Garment Size Country	Mexico
Is Discontinued By Manufacturer	No
Item Type Name	Base Layer
Item Weight	0.66 Pounds
Item model number	MX 1001
Manufacturer	HEROBIKER
Manufacturer	HEROBIKER
Manufacturer Part Number	HEROBIKER
Material Type	Polyester
Neck Style	Crew Neck
Number of Items	2
Occasion Type	Skiing
Pattern	Solid
Product Care Instructions	Machine Wash
Product Dimensions	7.62 x 5.08 x 0.51 cm
Size	M
Sleeve Type	Long Sleeve
Style Name	Classic
Style Number	MX 1001 M
UPC	756244705088
Unit Count	1 Count

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€ 70.93

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

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TrustScore 4.5 | 7,300+ reviews

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HEROBIKER mens Classic Base Layer

Description

Specifications

Common Questions