Baby T-Shirts – Ultra-Soft Cotton Tees Safe for Sensitive Skin

100% Soft CottonGender NeutralSizes NB–18M

Baby tees in 100% combed ringspun cotton for newborns and infants. Pre-shrunk, machine washable, and cut with a wide envelope neck for easy on and off. No rough seams or tags. Gender neutral colours from newborn to 18 months.

100% Combed Cotton Wide Envelope Neck Machine Washable 100-Day Guarantee
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What Makes These Different

Baby Tees Built for Real Infant Wear

100 Days Satisfaction Guarantee
NB–18M Infant Size Range
Pre-Shrunk Holds Size After Washing

Baby tees are the most-used item in an infant wardrobe. Short sleeve t-shirts in sizes NB to 18M that parents reach for daily, worn under overalls, on their own in warm weather, or layered under a fleece bodysuit in cooler months. These baby tees are cut from 100% combed ringspun cotton chosen for how it holds up through the daily wash cycle every infant wardrobe demands. Gender neutral colours and printed designs are available across the full NB to 18M size range.

Baby Tee Styles and Sizes: NB to 18M

Baby tees come in two main styles: plain solid colours and printed graphic designs. Both styles use the same 100% combed ringspun cotton construction and run in the same sizes: newborn (up to 8 lbs), 0-3M, 3-6M, 6-12M, and 12-18M. For sizes NB and 0-3M, an envelope neckline is the right choice. The wider opening expands sideways so the tee passes over the head without stretching or pulling. Short sleeve is the standard cut for year-round use as a base layer or a standalone top.

Sizing Baby Tees: From Newborn Through 18 Months

Newborns under 8 lbs fit the NB size. For babies over 8 lbs at birth, start at 0-3M, which fits from birth and lasts longer before the next size is needed. When buying before the birth, 0-3M is the safer choice since most newborns grow through NB within the first few weeks. Babies typically stay in each size for 2 to 3 months. When your baby is near the top of a size's weight range, size up. A slightly larger tee wears longer before the next size is needed.

For a full size chart with chest and length measurements across NB to 18M, read the baby tee sizing guide.

When to Use Baby Tees

Baby tees work as a standalone top in warm weather and as a base layer in cooler months. In summer, a plain or graphic baby tee is the most practical choice for daily indoor and outdoor wear. In autumn and winter, a short sleeve baby tee worn under a zip-up sweatshirt or fleece bodysuit adds warmth without bulk. Baby tees also transition well from the onesie stage to regular toddler tops once children reach the 18-month range and begin to prefer separate tops and bottoms.

Baby Tee Fabric and Care

These baby tees are made from 100% combed ringspun cotton. Combing removes the shorter, coarser fibres from the yarn before spinning, producing a finer, smoother thread than standard ringspun cotton. Against newborn skin, which is more sensitive than adult skin, this produces a noticeably softer feel. All tees are pre-shrunk, so the size holds after washing. Machine wash cold on a gentle or regular cycle and tumble dry low. No special care routine is needed. The cotton is durable enough for daily infant wear and repeated washing without losing its softness over time.

Also browse baby onesies for snap-closure bodysuits and bodysuit styles, or the baby clothing hub for all infant basics in one place.

Buyer's Guide

How to Choose a Baby Tee

Size Guide: NB to 18M

Baby tees run in newborn (up to 8 lbs), 0-3M, 3-6M, 6-12M, and 12-18M. Newborns typically fit NB or 0-3M — if your baby is over 8 lbs at birth, start at 0-3M. Babies grow fast: if you are between sizes, size up. Each product page includes chest and length measurements.

Fabric: 100% Combed Ringspun Cotton

Combed ringspun cotton is processed to remove short, coarse fibres before spinning, producing a smoother, softer yarn than standard cotton. The result is a baby tee that is noticeably softer against infant skin without any finishing treatment. Pre-shrunk to hold its size after repeated washing.

When to Use a Baby Tee

Baby tees work as a standalone top in warm weather or as a base layer under overalls, a romper, or a fleece bodysuit in cooler months. The short sleeve length makes them the right choice for indoor use year-round and outdoor use in spring and summer.

Care: Machine Wash, Tumble Dry

Machine wash cold with like colours. Tumble dry low. The combed ringspun cotton is pre-shrunk, so the tee holds its size and shape through repeated washing. Avoid high heat in the dryer — low is enough and extends the life of the fabric.

Why Parents Choose These

6 Reasons These Baby Tees Work

Combed Cotton — Softer at Skin Level

Combed ringspun cotton removes the coarser fibres before spinning, producing a finer, smoother yarn. Against infant skin — which is more sensitive than adult skin — this difference is real and immediate.

Wide Envelope Neck for Easy Dressing

The envelope neck opening is wider than a standard crew neck, which means the tee pulls over the head without stretching or resistance. Critical for infants who cannot assist with dressing.

Pre-Shrunk — Size Holds After Washing

Pre-shrunk fabric means the tee you receive is the size you ordered after washing. No first-wash size drop. The 0-3M you buy fits a 0-3M infant for the duration of that size window.

Gender Neutral Colours

Colours chosen to work for any baby regardless of gender. Useful for families who do not know the sex before birth, for gifting, and for dressing siblings without a separate wardrobe for each.

Tagless — No Label Irritation

Tags inside baby clothing are a known source of skin irritation, particularly around the neck. These baby tees are tagless, removing the most common irritant in the collar area.

100-Day Guarantee

All ComfyThreads purchases are covered by a 100-day guarantee. If a baby tee does not hold up to normal infant wear and washing within 100 days, contact us for a replacement or full refund.

What Parents Say

Baby Tee Reviews

4.9 / 5 · 412 Reviews
"These are the softest baby tees I have found. I bought a 3-pack in 0-3M and ordered more in 3-6M before my daughter outgrew the first size. The envelope neck makes dressing her so much easier."
Rachel M.
March 2025
Verified
"Bought these as gifts for my sister's new baby. She messaged me after the first wash to say they held their shape and are noticeably softer than the other tees she has. Will buy again for the next baby in the family."
Daniel P.
January 2025
Verified
"I love that these come in gender neutral colours. I stocked up before my baby was born and could use them regardless of whether we had a boy or a girl. Still soft after dozens of washes."
Amy S.
February 2025
Verified

Frequently Asked Questions

Baby Tees: Questions Answered