Name: Under Armour Rival Core Ss - castlerock
Brand: Under Armour
SKU: OE-77-1383648-0025
Price: 35.00 CHF
Availability: InStock

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Preview: Under Armour Rival Core Ss - castlerock

Under Armour Rival Core Ss - castlerock

(Product No.: OE-77-1383648-0025)

Mobile Preview: Under Armour Rival Core Ss - castlerock

Description

Super-soft, cotton-blend fabric provides all-day comfort
4-way stretch material moves better in every direction
Ribbed collarWash garment inside out
Machine wash cold with like colors
Use only non-chlorine bleach when needed
Tumble dry low
Do not iron
Do not use softeners
Do not dry clean
57% Cotton/38% Polyester/5% Elastane

Find more products here

Under Armour Size Chart

Fit-und-Warm carries a broad Under Armour assortment of apparel, footwear and accessories for women, men and children: base layers, gloves, hoodies, pants, jackets, headwear, shoes, socks, T-shirts, bags and backpacks.

Men's Tops

Size	Chest (cm)	Waist (cm)
XS	79–86	71–74
S	86–94	74–79
M	94–104	79–86
L	104–112	86–94
XL	112–122	94–104
XXL	122–132	104–116
3XL	132–142	116–127
4XL	142–152	127–138
5XL	152–163	138–150

CM values were mathematically converted from Under Armour's official inch chart using 1 inch = 2.54 cm and sensibly rounded.

Women's Tops

Size	Chest (cm)	Waist (cm)
XXS / 00	79–83	62–65
XS / 0–2	83–85	65–68
S / 4–6	85–91	68–74
M / 8–10	91–96	74–79
L / 12–14	96–104	79–86
XL / 16	104–112	86–94
XXL / 18	112–119	94–102
3XL / 20	119–127	102–109

Boys' Apparel

Size	Chest	Waist	Hip	Height (cm)
YXS / 7	63–66	58–61	66–69	119–128
YSM / 8	66–69	61–63	69–71	128–135
YMD / 10–12	69–74	63–69	71–79	135–150
YLG / 14–16	74–83	69–76	79–86	150–165
YXL / 18–20	83–90	76–84	86–94	165–178

Men's Shoes

US	Foot length (cm)	EU	UK
7	25	40	6
7.5	25.5	40.5	6.5
8	26	41	7
8.5	26.5	42	7.5
9	27	42.5	8
9.5	27.5	43	8.5
10	28	44	9
10.5	28.5	44.5	9.5
11	29	45	10
11.5	29.5	45.5	10.5
12	30	46	11
12.5	30.5	47	11.5
13	31	47.5	12
13.5	31.5	48	12.5
14	32	48.5	13
14.5	32.5	49	13.5
15	33	49.5	14
15.5	33.5	50	14.5
16	34	50.5	15

Women's Shoes

US	Foot length (cm)	EU	UK
5	22.5	35.5	3
5.5	23	36	3.5
6	23.5	36.5	4
6.5	23.5	37.5	4.5
7	24	38	5
7.5	24	38.5	5.5
8	24.5	39	6
8.5	25	40	6
9	25.5	40.5	6.5
9.5	26	41	7
10	26.5	42	7.5
10.5	27	42.5	8
11	27.5	43	8.5
11.5	28	44	9
12	28.5	44.5	9.5

Kids / Youth Shoes

Under Armour publishes a separate kids footwear chart using US Youth, US Women, CM, Euro and UK. For FuW kids' footwear, use that product-specific Under Armour kids chart; do not transfer adult conversions.

Boys' Socks

Sock size	US Youth	EU
0–6M	0K–2K	up to 17.5
6M–12M	2K–4K	17.5–19.5
12M–24M	4K–7K	19.5–23.5
2–4T	7K–10.5K	23.5–27.5
4–6 / XS	10.5K–13K	27.5–31
S	13.5K–4.5	31.5–36.5
M	4.5–7	36.5–42

Fits

Fit	Description
Tight	Snug without compression squeeze.
Fitted	Close to the body for a streamlined feel.
Regular	Classic, neither tight nor loose.
Relaxed	Generous fit with room to move.

Assortment check: Fit-und-Warm Under Armour brand page. Manufacturer sources: official Under Armour Size & Fit Guides for Men, Women, Boys, Footwear and Socks. Research checked on 20 August 2026.