Stanfield's Men's Thermal Premium Cotton Rib Onesie Baselayer
Stanfield's Men's Thermal Premium Cotton Rib Onesie Baselayer
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Stanfield's Men's Thermal Premium Cotton Rib Onesie Baselayer

|30 ratings

Key item features

  • Comfortable Fabric: Made from 100% combed cotton in a 1x1 rib knit, this onesie offers extra stretch for ease of movement and a soft, absorbent feel for premium comfort.
  • Functional Design: Features a full button front, a rib collar, and military insert shoulders, providing a classic and practical design.
  • Convenient Access: Includes a trap door with button closure at the back for added convenience and a tagless label to prevent irritation.
  • Optimal Fit: Designed with leg gussets to give thighs extra room, ensuring a proper and comfortable fit for various body types.
  • Easy Care: This thermal baselayer is machine washable and dryable, simplifying maintenance and ensuring long-lasting wear.
  • Cold Weather Ready: Ideal for moderate cold weather, offering reliable warmth and comfort as a foundational layer.
  • Size Availability: Available in a range of sizes from Small (S) to Extra Large (XL) to accommodate different preferences.
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4.3 out of 5 stars
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30 ratings10 reviews
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Showing 1-3 of 10 reviews

Dec 13, 2025
Reviewer name: Anita
Item details
Color: Grey Heather
Clothing size: L
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Onesie thermal underwear

i bought this for my hubby and he loves them!

Incentivized Review
Helpful?1M3GFG2DX28U224947404
Dec 8, 2025
Reviewer name: Jim
Item details
Color: Red
Clothing size: XL
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A well designed traditional union suit/onesie

This is a really well designed traditional union suit/onesie. I typically wear a size XL. The Stanfield's XL onesie arrived a bit too big, but it is 100% cotton, and it shrank a bit in the wash and now fits very well. It has a one button vertical rear fly; a vertical rear fly is the best design of all the onesie designs that I've seen. The Stanfield's onesie has a longer rear fly than either of my other two brands. The longer rear fly makes it considerably easier to use when using the commode. Having a union suit is really nice on cold mornings, particularly when camping, since one does not have to fully disrobe in order to do one's "business." THINGS I LIKE • One button *vertical* rear fly (best design by far out of all rear fly types that I've seen) • Long rear fly (much easier to use than a shorter rear fly as on some other brands) • Soft cotton, very comfy. • Good cuffs on both the arms and the legs that don't pull up easily • Well made; good quality • Colorfast -- did not bleed in wash • Shrinks to fit • Works well as pajamas as well as a baselayer under other garments THINGS I DON'T LIKE • It's a bit thinner than either of the other two brands I have. On the other hand, sometimes one just needs a lightweight layer in spring or early fall (or when wearing tighter clothes), in which case the Stanfield's Onesie fits the bill. However, it may not be as durable as a thicker one; we'll see. • The buttonhole on the rear fly does have some reinforcing, but I've seen more reinforcement on other brands. Time will tell, but the buttonhole is a possible future point of failure.

Incentivized Review
Helpful?1M3GFG2DX28U224947404
Jun 16, 2026
Reviewer name: Walmart customer
Item details
Color: Grey Heather
Clothing size: L
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great fit, shrank a little after wash, crotch area on the baggy side

Incentivized Review
Helpful?1M3GFG2DX28U224947404
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