Babywearing is comfortable for everyone involved when baby's outfit cooperates with the carrier instead of fighting it. A few small choices in what baby wears can make a huge difference in comfort for both of you, especially on longer outings.
Soft, stretchy fabric over anything structured
A carrier presses baby's clothing against their body and yours for extended periods, so stiff fabric, structured overalls, or anything with a rigid waistband can dig in uncomfortably. Soft cotton knits that stretch with movement are far more comfortable for a baby sitting in a carrier for a while.
Watch out for buttons, snaps, and embellishments
Any hardware sitting along the spine, chest, or hips can press uncomfortably between baby and the carrier's fabric panel. A smooth front with minimal raised details is much more comfortable than a romper covered in decorative buttons or bows sewn onto the body of the garment.
Leg openings matter for the seated position
A carrier holds baby in a seated, straddle-leg position, so rompers and bodysuits with roomy, stretchy leg openings work better than snug-fitting pants or tight-cuffed leggings. Fabric that can move freely at the hips keeps baby comfortable in that position for longer stretches.
Layer lighter than you think
Being carried close to an adult's body adds warmth on its own, so baby usually needs one fewer layer in a carrier than they would in a stroller. A single breathable layer underneath a carrier cover or your own jacket is often enough, even on a cooler day.
Skip anything with a hood while in the carrier
A hood bunched up behind baby's head in a carrier can push their head forward at an awkward angle or bunch uncomfortably against the carrier's back panel. Save hooded pieces for before or after babywearing, not during it.
Quick access still helps
You'll likely need to check or change a diaper mid-outing, so a bodysuit or romper with a full snap panel makes that easier without needing to take baby all the way out of the carrier first.
Soft, breathable organic cotton baby clothes are naturally suited to babywearing, since they move with baby instead of against them.