Reef System Tee

Description

If you can read all five items on this key, you didn't buy this shirt. You earned it. FIG. 1 is a clean mid-century cutaway of a working saltwater reef system: display tank up top, sump and skimmer below, every part called out in a numbered legend. And item 5? Any reefer already knows why the alk swing is not shown.

The linework is drawn like an owner's-manual diagram, crisp and bold on every shade, and the whole range runs dark on purpose: that's what makes the diagram land.

A quiet flex for the reef keeper in your life. A build-completion marker, a tank-anniversary gift, or the shirt they wear to the next frag swap.

Drafted like the manual. Worn like a badge.

Sizing

Regular FitTrue to Size

Length Measure from the top of your shoulder, beside the collar, down to where you want the shirt to end.

Chest Wrap the tape around the fullest part of your chest, keeping it horizontal.

Size	Length	Chest
XS	27	31-34
S	28	34-37
M	29	38-41
L	30	42-45
XL	31	46-49
2XL	32	50-53
3XL	33	54-57
4XL	34	58-61
5XL	35	62-65

Between sizes? Pick the bigger size for a relaxed fit.

* Measurements can vary by up to 2 inches.Measurements can vary by up to 5 cm.

Material & Care

Material

Solid colors: 100% Airlume combed, ring-spun cotton (heather shades blend in polyester)
Soft, lightweight jersey with a little stretch and a natural drape (4.2 oz/yd²)
Pre-shrunk, side-seamed, with shoulder-to-shoulder taping
Tear-away tag, so no itchy label at the neck
It's a light tee, so lighter colors can be slightly see-through

Fabric weight

LightweightHeavyweight

Softness

SoftExtra soft

Care

Machine wash cold, inside out, on a gentle cycle with similar colors and mild detergent
Non-chlorine bleach only when necessary
No fabric softener
Tumble dry low, or hang dry for the longest life
Cool iron inside out if necessary. Never iron the print itself
No dry cleaning