Sustainablebabyish Underwoolies
Sloomb Underwoolies - Admiral
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Sustainablebabyish Underwoolies

Product Rating: review

A day-time favorite knit wool cover, Underwoolies are a must-have cover for natural diapering.

Our Price:$39.00


Sustainablebabyish Underwoolies by Sloomb

Sloomb Wool Soakers are often regarded as the industry standard for wool diaper covers. The folks at Sustainablebabyish|Sloomb have created a trimmer version of their covers--meet Sloomb Underwoolies! Underwoolies are constructed of a single layer of 100% Merino wool, with a double layer through the wet zone. Underwoolies remove the bulk where it is not needed so they fit better under clothes. This wool diaper cover is lightweight and perfect for daytime diapering or use as training pants.

Underwoolies Sizing

Size Weight* Age*
Size 1 5-18 lbs 0-12 mo
Size 2 18-37 lbs 12-24 mo

*Weight/Age ranges are approximate.

Sustainablebabyish underwoolies are made with 100% merino wool and elasticized waistband.

Care Instructions: Hand wash with room temperature water and wool cleaner. Lanolize. Lay flat to dry. Do not machine wash. Do not use hot water.

Sloomb products are responsibly machine knit in China with öko-tex certified wool yarns.


  • Maeve

  • Mist

  • Moss

  • Woad

  • Admiral

  • Cake

  • Tabby


Eucalan Woolwash
Eucalan Woolwash
Eucalan Wool Wash is low sudsing so no rinsing is required. Because this formula does not require rinsing, wool diaper covers experience less matting. Eucalan contain lanolin which helps in waterproofing wool diaper covers. Periodic lanolizing is still recommended.
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Sustainablebabyish Snapless Multi Fitted Diaper
Sustainablebabyish Snapless Multi Fitted Diaper
A fitted diaper for babies and toddlers 10-35lbs.
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Learn more about Sustainablebabyish Snapless Multi Fitted Diaper
Sustainablebabyish Playwoolies
Sustainablebabyish Playwoolies
Introducing Playwoolies- the original, genuine woolie-style leggings made from 100% ExtraFine Merino Wool Easy Care.
Add Sustainablebabyish Playwoolies to Cart
Learn more about Sustainablebabyish Playwoolies

Customer Reviews

4 Stars
Overall work great
Reviewed by:  from Anonymous . on 2/9/2018
We use them for last stage of potty training of my 3 yo. But hey seem to need relanolization way sooner than disana wool diaper covers. They work great though over regular trainers and at holding pee from getting in the actual clothes. Love them
5 Stars
My favorite wool cover
Reviewed by:  from Indiana. on 6/28/2017
These have become my favorite wool covers. They're trim instead of bulky which makes them very versatile. They work great over diapers but because they're cut like large underwear they actually work great over trainers too. So they give you a little more protection when you take babe out during potty training while still looking and feeling underwear.
5 Stars
Sloomb woolies
Reviewed by: (Verified Buyer)  from Georgia . on 2/18/2017
I love this!! We haven't had a leak yet ! Strongly recommended these!!
5 Stars
So soft!
Reviewed by: (Verified Buyer)  from northwest. on 12/31/2016
To be honest I was a little hesitant to purchase this cover. Although I'd heard great things about Sloomb I wasn't sure if it would be worth the price point. I have used other wool covers with my older kids though & know the great benefits of wool! I am delighted to say that I am very happy I ordered it. It is soft, extremely well made & looks like it will be perfect for our new baby! I love the higher rise on the tummy!
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