Size Guide

Our garments are designed in Korea. Korean sizing runs about one size smaller than US and EU sizing. If you are between sizes, or prefer a relaxed fit, choose one size up.

Size chart — Aileron Ultra 1000 SUL (hooded & hoodless)

Size	Length	Chest	Hem	Shoulder	Sleeve*	Cuff
S	67 cm 26.4 in	108 cm 42.5 in	105 cm 41.3 in	44.5 cm 17.5 in	87 cm 34.3 in	44 cm 17.3 in
M	69 cm 27.2 in	113 cm 44.5 in	110 cm 43.3 in	46.5 cm 18.3 in	89 cm 35.0 in	46 cm 18.1 in
L	71 cm 28.0 in	118 cm 46.5 in	115 cm 45.3 in	48.5 cm 19.1 in	91 cm 35.8 in	48 cm 18.9 in
XL	73 cm 28.7 in	123 cm 48.4 in	120 cm 47.2 in	50.5 cm 19.9 in	93 cm 36.6 in	50 cm 19.7 in
XXL	75 cm 29.5 in	128 cm 50.4 in	125 cm 49.2 in	52.5 cm 20.7 in	95 cm 37.4 in	52 cm 20.5 in

*Sleeve measured from centre back. Flat-lay, ±1–2 cm. Korean sizing runs about one size smaller than US/EU — if between sizes, size up.

Recommended size — men

Height (cm)	Recommended size by weight
160–165	S (50–57 kg) · M (58–73 kg) · L (74–82 kg)
166–170	S (55–62) · M (63–70) · L (71–78) · XL (79–87)
171–175	M (60–75) · L (76–84) · XL (85–95)
176–180	M (65–72) · L (73–80) · XL (81–89) · XXL (90–100)
181–185	L (70–77) · XL (78–86) · XXL (87–97)
186–190	XL (75–83) · XXL (84–96)

Recommended size — women

Height (cm)	Recommended size by weight
150–155	S (40–55 kg) · M (56–63 kg)
156–160	S (45–60) · M (61–68)
161–165	S (48–63) · M (64–72)
166–170	M (52–70) · L (71–80)
171–175	M (56–65) · L (66–75)