SERIOUS PROTEIN – Protein Powder – 4kg

Name: SERIOUS PROTEIN – Protein Powder – 4kg
Brand: GymBum UK
Price: 44.99 GBP
Availability: InStock

Engineered with purpose. Worn with confidence

£44.99

~~£44.99~~ £44.99

Sale Sold out

Tax included. Shipping calculated at checkout.

Fulfilled by Amazon

Quantity

More Payments

GymBum UK Size Guide

GYMBUM UK®

Size Guide

1️⃣ Women – Sports Bras

Measure Yourself

For accurate sizing, keep the tape measure level and parallel to the ground.

Bust
Measure around the fullest part of your chest.

Underbust
Measure directly under your bust where the bra band sits.

Body Measurements (Inches)

Size	Bust	Underbust
XS	33–34"	27–28"
S	34–36"	28–30"
M	36–38"	30–32"
L	38–40"	32–34"
XL	40–43"	34–36"
2XL	43–46"	36–39"
3XL	46–49"	39–42"

Between sizes?
Size up for a more comfortable fit.
Size down for a more compressive performance fit.

2️⃣ Women – Tops & T-Shirts

Body Measurements (Inches)

UK Size	Bust	Waist
4–6	31–33"	24–26"
8–10	33–36"	26–28"
12–14	36–40"	28–32"
16	40–43"	32–34"
18	43–46"	34–37"

3️⃣ Women – Leggings & Shorts

Body Measurements (Inches)

UK Size	Waist	Hips
4–6	24–26"	34–36"
8–10	26–28"	36–38"
12–14	28–32"	38–42"
16	32–34"	42–44"
18	34–37"	44–46"

4️⃣ Men – Tops & Hoodies

Size	Chest	Waist
S	36–38"	30"
M	38–40"	32–34"
L	42–44"	36"
XL	46–48"	38"
XXL	50–52"	40–42"

5️⃣ Men – Shorts & Joggers

Size	Waist
S	30"
M	32–34"
L	36"
XL	38"
XXL	40–42"

Fit & Sizing Notes

Some styles follow Asian sizing and may run 1–2 sizes smaller than standard UK sizing.
Refer to each product description for specific fit details.
Measurements may vary slightly depending on fabric and cut.

SERIOUS PROTEIN by The Bulk Protein Company is built for anyone who wants reliable, high-quality protein without unnecessary fillers, excess sugars or empty calories. Each 30g serving delivers 24g of complete protein from a balanced blend of Milk Protein Concentrate, Soy Protein Isolate and Glutamine Peptides — supporting muscle repair, recovery and strength as part of your daily routine.

The 4kg tub offers over 133 servings, making it outstanding value for athletes, gym regulars and anyone following a structured high-protein diet. With low carbs, low sugar and low fat, it fits seamlessly into lean muscle, cutting or weight management goals.

24g complete protein per serving
133+ servings per 4kg tub
Blend of Milk Protein Concentrate, Soy Protein Isolate & Glutamine Peptides
Low carb, low sugar, low fat
Suitable for vegetarians
6 flavours: Chocolate, Banana, Choc Peanut Butter, Cookies & Cream, Strawberry, Salted Caramel
Also available as a Pack of 2 (8kg / 266 servings)

How to use: Mix 1 rounded scoop (30g) with 250ml of water or milk in a shaker with a mixer ball, or blend for a smoother texture. Consume the same day once prepared.

Ingredients: Soy Protein Isolate, Glutamine Peptides (Wheat), Milk Protein Concentrate, Maltodextrin, Cocoa Powder (Chocolate flavour), Flavouring, Sweetener (Sucralose). Contains milk, soya, wheat.

Intended for use by healthy adults over 18. Store in a cool, dry place out of reach of children. Food supplements are not a substitute for a varied and balanced diet.

Size Guide

Search your store...

SERIOUS PROTEIN – Protein Powder – 4kg