The Performance Baselayer T-shirt is designed to be a fitted garment. Please take this into consideration when choosing your size.

How to measure length for the Gilet:.

Unisex size
Chest
Collar bone to hem (Front hem)
XS 34" (86cm) 21" (53cm)
S 36" (91cm) 22" (56cm)
M 38" (96cm) 23" (58cm)
L 40" (101cm) 24" (61cm)
XL 42" (106cm) 25" (63cm)
XXL 44" (111cm} 26" (66cm)
XXXL 46" (117cm) 27" (68cm)