Name: Myprotein Impact Whey Protein Powder
Brand: GymBum UK
SKU: B00EZTKZAW
Price: 62.99 GBP
Availability: InStock

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.

Build, Recover, Repeat – Packed with 23g of high-quality whey protein per serving, Impact Whey Protein fuels muscle growth, maintenance, and recovery, helping you stay one step ahead of your goals. Whether you're chasing strength gains or maintaining hard-earned muscle, this is your workout's best mate. Clean, Certified, Trusted – With Informed Choice certification, every scoop is independently tested for purity, giving athletes confidence in every sip. No hidden nasties—just premium quality protein you can trust. You know exactly what you're getting, and that's the GymBum guarantee.

Leaner Gains, No Extra Baggage – With just 114 calories, 1.9g of fat, and 1.8g of carbs per serving, this is high-protein nutrition without the unnecessary extras. Perfect for cutting phases or keeping your macros tight while maximising protein intake. Power Up Your Recovery – Each serving delivers 5g of naturally occurring BCAAs, essential for muscle repair and reducing post-workout soreness, so you can train harder, recover faster, and come back stronger. Your muscles will thank you tomorrow.

From The UK's No.1 Protein Brand – Trusted by millions worldwide, Impact Whey Protein has been a bestseller for over 20 years. Designed by expert nutritionists, it's the protein choice for elite athletes and everyday fitness enthusiasts alike. Join the winning team and taste why champions choose Impact.