GymBumUK Men's Black Baselayer

Name: GymBumUK Men's Black Baselayer
Brand: Gymbum UK
SKU: 5187345_9144
Price: 29.99 GBP
Availability: InStock

Engineered with purpose. Worn with confidence

£29.99 GBP

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Shipped by GymBum UK

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GymBum UK Size Guide

🧡 GymBum UK Sports Bra Size Guide

Size	Chest (inches)	Underbust (inches)
XS	33 ⅛	27 ½
S	34 ⅝	29 ⅛
M	36 ¼	30 ¾
L	39 ⅜	33 ½
XL	42 ½	36 ¼
2XL	45 ⅝	39
3XL	48 ⅞	41 ¾

🧍♀️ Women’s Activewear

UK	US	EU	Asian	Tops / Bras	Leggings / Shorts	Trainers (UK/EU/US)
4–6	0–2	32–34	S	XS	XS	3.5 / 36 / 5
8–10	4–6	36–38	M	S	S	4–5.5 / 37–38 / 6–7.5
12–14	8–10	40–42	L	M	M	6–7.5 / 39–40 / 8–9.5
16	12	44	XL	L	L	8–8.5 / 41–42 / 10–11
18	14	46	XXL	XL	XL	9–9.5 / 43–44 / 11.5–12

🧍♂️ Men’s Activewear

UK	US	EU	Asian	Tops / Hoodies	Shorts / Joggers	Trainers (UK/EU/US)
S	S	46	M	36–38" Chest	30" Waist	6–7 / 39–40 / 7–8
M	M	48–50	L	38–40" Chest	32–34" Waist	8–9 / 41–42 / 9–10
L	L	52	XL	42–44" Chest	36" Waist	10 / 43–44 / 11
XL	XL	54	XXL	46–48" Chest	38" Waist	11 / 45–46 / 12
XXL	XXL	56	3XL	50–52" Chest	40–42" Waist	12–13 / 47–48 / 13–14

🧵 Fit Notes

Asian sizes typically run 1–2 sizes smaller than UK sizing.
For a performance fit, choose your regular UK size.
For a relaxed fit, size up.
Measurements are approximate and may vary slightly by fabric and style.

Fit Tip: Some of our activewear follows Asian sizing (approx. 1–2 sizes smaller than UK). Refer to the GymBum Size Guide for accurate conversions.

Unleash your potential in the GymBumUK Men's Black Baselayer—leggings built for athletes who demand excellence. Advanced moisture-wicking technology pulls sweat away, keeping you cool and confident through grueling gym sessions, outdoor runs, beach days, and everything in between. The stretchy, form-fitting design hugs your body while allowing complete freedom of movement, so nothing holds you back. From MMA training to yoga flows to everyday adventures, these leggings adapt to your lifestyle with ease. Durable, stylish, and engineered for performance—they're the reliable foundation every active man needs.yle.

Size guide

	WAIST (inches)	HIPS (inches)
XS	29 ⅞	37
S	31 ½	38 ⅝
M	33 ⅛	40 ⅛
L	36 ¼	43 ¼
XL	39 ⅜	46 ½
2XL	42 ½	49 ⅝
3XL	45 ⅝	52 ¾

	WAIST (cm)	HIPS (cm)
XS	76	94
S	80	98
M	84	102
L	92	110
XL	100	118
2XL	108	126
3XL	116	134

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GymBumUK Men's Black Baselayer