There is no loose fit.

There is one fit, and it is regulation.

Measure once — we already know your size. This page only confirms it.

Find your size

State your chest. Receive your verdict.

This chart governs the SICK T only. Team kits are cut to a different run — calculate your kit size in the team order.

The regulation chart

Every number. Nothing rounded to flatter you.

SizeTo-fit chestGarment flatLengthSleeve
S34–36 in17.5 in27 in7.5 in
M37–39 in19 in28 in8 in
L40–42 in20.5 in29 in8.5 in
XL43–45 in22 in30 in9 in
XXL46–49 in23.5 in31 in9.5 in

Measure like you mean it. Tape around the fullest part of the chest, under the arms, level across the back. Breathe normal. Between two sizes: down for lock (full compression, second skin), up for room (still athletic, a hair easier). Cold wash, hang dry — heat is the only thing that beats this fabric.