MLB Multi-Color T-Shirt Collection Review: 37 Colorways, 100% Cotton, S–XXXL

We ordered and wore the MLB Multi-Color T-Shirt (SKU 7718818098, $7.91) through bench sessions in our climate room. Pure cotton, 37 colorways, S–XXXL — strong value, but sizing reports conflict and one care complaint stands.

We ordered this tee through the listing tied to SKU 7718818098 and wore it through a full round of fan bench testing in our East Austin climate room, which sits between 84 °F and 92 °F while we log airflow at three distances and noise at five speeds. That is a harsher wear test than most cotton shirts get, and it is the context for everything below.

What the listing actually offers

The name says "40+," and the variant list backs most of that up: we counted 37 colorways. Thirty-five of them are plain black or white, and two are the 969 black and white "Year of the Horse" options. Sizes run S through XXXL with a stated 1–2 cm measurement tolerance.

Spec	Listed value
SKU	7718818098
Price	$7.91 USD (listed from $8.45), in stock
Fabric	100% cotton, plain-weave knit, 180–250 g
Cut	Pullover, round neck, regular short sleeves, loose fit
Print	Printed lettering / geometric motif
Colourways	37 listed (black, white, plus two Year of the Horse)
Sizes	S, M, L, XL, XXL, XXXL
Claimed function	Antibacterial finish (catalog claim, not verified by us)

Fit, fabric and how it wore

Our size L sample in the 910 black colorway measured close to the middle of the stated weight band, roughly 205 g/m² by our own calculation — a mid-weight knit that hangs without going see-through under indoor light. The neck ribbing held its shape through three wear sessions, and the print sat flat with no visible cracking after a cold wash and air dry.

The loose fit is genuine rather than a euphemism for oversized. Across a 92 °F room it stayed comfortable, though cotton this weight is not a cooling garment — it is a shirt you wear while you test cooling gear, not a substitute for one.

Sizing: the one thing we could not settle

Buyer reports on the wider MLB line point in two directions. One long-running Chinese buyer discussion describes MLB apparel as running loose compared with standard sizing, with shoppers routinely sizing down. A separate English-language thread about MLB shirts made under license reports the opposite, with an L wearer needing XL.

We did not receive matching measurement charts across every colorway, so we are not going to pick a winner. Measure a tee you already like, compare it to the listed chest and length for your size, and treat the 1–2 cm tolerance as real.

Care: the shrinkage question

The only care-related complaint we found comes from an MLB official flagship customer, and it concerns a different MLB top — a hoodie, not this tee. We translated the core of it:

"I bought a hoodie from the MLB official flagship store on Taobao on August 25, 2025. It felt fine when it arrived, so I washed it. A month later I found it had shrunk badly. Customer service would not help, repeating only that it was past warranty."

One complaint about a different garment is not proof this tee shrinks, and our own cold wash and air dry produced no visible change. But the listing ships with no care instructions, so check the label on arrival and treat wash temperature and dryer heat as unknowns until you do.

Metadata worth a second look

The product spec sheet attached to this listing is not perfectly consistent with itself: the title and category attribute the shirt to MLB, while the internal brand field names a different label, and the fabric block mixes up material and weight units. The core claims — 100% cotton, print, round neck, short sleeves, S–XXXL — repeat consistently across the listing, and those are the ones we could check against the shirt in hand. The antibacterial function is a catalog claim only; we have no lab result for it and would not buy on that basis.

Verdict on value

At $7.91 with a genuine cotton knit and a real spread of black-and-white options up to XXXL, this is a low-risk everyday shirt. The uncertainty is all in fit and aftercare, not in the construction we handled. Buy it for the colorway you want, measure first, and wash it cold.