Is this official Celtics or NBA merchandise?

No. It is an independent retro-style graphic top inspired by Larry Bird and the 90s Celtics era, not licensed team apparel.

What is the fabric like?

It is described as a soft-touch, lightweight and breathable fabric. That suits casual wear but is not a heavyweight tee.

The listing gives no detailed fit guidance. Treat it as a standard casual top and check the size options in the buy box before ordering.

Both. It is styled as streetwear, so it works at a stadium, a bar or in everyday rotation.

Wash inside out in cold water and skip the dryer to reduce cracking and fading on the graphic.

Yes, if the person likes 90s basketball nostalgia. It is a novelty graphic top rather than collectible or official gear.

Rated 4.6 out of 5 from 8 ratings.

4 stores we checked sell it, including Hiyatee, The Club House, Momof2boyz Shop, Amazon.

At The Club House, for $19.00, as of our latest check.

$19.00at The Club HouseChecked Nov 11

Compared across 4 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.