JCMUSCLEBUILDING – WWW.JCMUSCLEBUILDING.COM

Aspire Trainer Socks

JCMB-team — Fri, 30 May 2025 10:21:08 +0000

Premium trainer socks for training and day-to-day wear. Features the SBD logo on the back of the ankle.

Knitted in Great Britain, each of our socks is a bespoke product designed with strength training in mind, from form to function.

Aspire is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Fully-elasticated construction.
Ribbed sole for traction within the shoe.
Sold as a pair.
Manufactured in Great Britain.

Socks can not be returned or exchanged.

Size	Shoe Size (UK)	Shoe Size (EU)
S	<5	<38
M	4-8	37-42
L	7-11	40-46
XL	10-14	44-49
2XL	13+	48+

Our sock sizes are based on shoe sizing.

We recommend washing the socks in water no higher than 40°C (104°F), as this will ensure longevity of the material and prevent any potential shrinkage from high heat.

Allow the socks to air dry after washing. We strongly recommend against putting the socks through a machine dryer as the heat can affect the material of the socks.

Aspire Powerlifting Knee Sleeves

JCMB-team — Fri, 30 May 2025 09:47:03 +0000

The SBD Powerlifting Knee Sleeves are designed for competitive powerlifters looking for the maximum support from their sleeves.

They allow for significantly greater compression throughout knee flexion to maximise support and confidence during maximal attempts, increasing top end performance.

Aspire is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Sold as a pair.
IPF approved and IWF compliant with the maximum allowable 30cm length.
High grade, high density 7mm neoprene offers maximal compression and surface contact area throughout knee flexion.
Enhanced four-way stretch allows the neoprene to stretch during fitting and maintain compression all around the knee joint throughout the lift with no gapping.
Heavyweight linings, edging and seams designed to hold up to even the most aggressive fitting.
Antimicrobial treatment minimises the build up in bacteria and reduces odour.
Patented design.
Made in Sheffield, Great Britain.

Size	Knee Joint (cm)	Knee Joint (in)
3XS	23-25.5	9-10
2XS	25.5-28	10-11
XS	28-30.5	11-12
S	30.5-33	12-13
M	33-35.5	13-14
L	35.5-38	14-15
XL	38-40.5	15-16
2XL	40.5-43	16-17
3XL	43-45.5	17-17.9
4XL	45.5-48	17.9-18.9
5XL	48-51.5	18.9-20.3

Measure the circumference of your knee joint with your leg out straight, keeping your muscles relaxed. Measure around the centre of your kneecap (at the patella), and around the thickest part of your calf. If your calf is more than 4cm (1.6in) larger than your knee, then you may wish to size up to ensure a good fit.

If you want a tight fit best suited to powerlifting and squatting, we recommend sizing down. A regular fitting knee sleeve will be snug.

If you are new to wearing knee sleeves we recommend going with the recommended fit instead of sizing down, especially if you fall on size medium or smaller.

We recommend hand washing your knee sleeves with water or a mild detergent (or a specialist neoprene/wetsuit detergent), then allow the sleeves to air dry standing up.

The spin cycle of a washing machine can damage the sleeve, as the knee sleeves become quite bulky when wet and can potentially get caught up or damaged by wringing. High heat from a washing machine or a dryer will degrade the rubber in the sleeves (potentially causing shrinkage or brittleness).

Aspire Competition T-Shirt

JCMB-team — Fri, 30 May 2025 09:33:34 +0000

Manufactured fully in the UK from cotton to sewing, the SBD competition t-shirt can endure the toughest training. Developed in conjunction with athlete feedback.

Aspire is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Featuring an SBD logo print on the chest and arms.
Designed for use under a singlet.
Comfortable and durable, designed to endure years of use in training.
Knitted with 100% Good Earth Cotton®.
Made in Sheffield, Great Britain.

Size	Men’s Fit (cm)	Men’s Fit (in)
XS	90-96	35.5-37.75
S	96-102	37.75-40.25
M	102-108	40.25-42.5
L	108-114	42.5-45
XL	114-122	45-48
2XL	122-130	48-51.25
3XL	130-138	51.25-54.25
4XL	138-146	54.25-57.5
5XL	146-154	57.5-60.75

The measurements for our t-shirts are based off of chest circumference.

We recommend washing the t-shirt at a maximum temperature of 30°C (86°F). Where possible, allow the shirt to air dry. If you must use a machine dryer, then we suggest using a cold setting.

Avoid ironing the printed logo, as this may damage the print.

Aspire Training T-Shirt

JCMB-team — Fri, 30 May 2025 09:15:10 +0000

Manufactured fully in the UK from cotton to sewing, the SBD shirt can endure the toughest training. Developed in conjunction with athlete feedback.

Aspire is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Featuring an SBD logo print on the chest.
Comfortable and durable, designed to endure years of use in training.
Knitted with 100% Good Earth Cotton®.
Made in Sheffield, Great Britain.

Size	Men’s Fit (cm)	Men’s Fit (in)
XS	90-96	35.5-37.75
S	96-102	37.75-40.25
M	102-108	40.25-42.5
L	108-114	42.5-45
XL	114-122	45-48
2XL	122-130	48-51.25
3XL	130-138	51.25-54.25
4XL	138-146	54.25-57.5
5XL	146-154	57.5-60.75

The measurements for our t-shirts are based off of chest circumference.

We recommend washing the t-shirt at a maximum temperature of 30°C (86°F). Where possible, allow the shirt to air dry. If you must use a machine dryer, then we suggest using a cold setting.

Avoid ironing the printed logo, as this may damage the print.

Forge Competition T-Shirt

JCMB-team — Thu, 14 Nov 2024 21:00:50 +0000

Manufactured fully in the UK from cotton to sewing, the SBD competition t-shirt can endure the toughest training. Developed in conjunction with athlete feedback.

Forge is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Featuring an SBD logo print on the chest and arms.
Designed for use under a singlet.
Comfortable and durable, designed to endure years of use in training.
Knitted with 100% Good Earth Cotton®.
Manufactured in Great Britain.

Size	Men’s Fit (cm)	Men’s Fit (in)
XS	90-96	35.5-37.75
S	96-102	37.75-40.25
M	102-108	40.25-42.5
L	108-114	42.5-45
XL	114-122	45-48
2XL	122-130	48-51.25
3XL	130-138	51.25-54.25
4XL	138-146	54.25-57.5
5XL	146-154	57.5-60.75

Size	Women’s Fit (cm)	Women’s Fit (in)
XS	80-84	31.5-33
S	84-88	33-34.75
M	88-92	34.75-36.25
L	92-96	36.25-37.75
XL	96-100	37.75-39.25
2XL	100-104	39.25-41
3XL	104-108	41-42.5

The measurements for our t-shirts are based off of chest circumference.

Forge Powerlifting Knee Sleeves

JCMB-team — Thu, 14 Nov 2024 21:00:33 +0000

The SBD Powerlifting Knee Sleeves are designed for competitive powerlifters looking for the maximum support from their sleeves.

They allow for significantly greater compression throughout knee flexion to maximize support and confidence during maximal attempts, increasing top end performance.

Reflect is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Sold as a pair.
IPF approved and USAPL and IWF compliant with the maximum allowable 30cm length.
High grade, high density 7mm neoprene offers maximal compression and surface contact area throughout knee flexion.
Enhanced four-way stretch allows the neoprene to stretch during fitting and maintain compression all around the knee joint throughout the lift with no gapping.
Heavyweight linings, edging and seams designed to hold up to even the most aggressive fitting.
Antimicrobial treatment minimizes the build up in bacteria and reduces odor.
Patented design.
Manufactured in Great Britain

Size	Knee Joint (cm)	Knee Joint (in)
3XS	23-25.5	9-10
2XS	25.5-28	10-11
XS	28-30.5	11-12
S	30.5-33	12-13
M	33-35.5	13-14
L	35.5-38	14-15
XL	38-40.5	15-16
2XL	40.5-43	16-17
3XL	43-45.5	17-17.9
4XL	45.5-48	17.9-18.9
5XL	48-51.5	18.9-20.3

If you want a tight fit best suited to powerlifting and squatting, we recommend sizing down. A regular fitting knee sleeve will be snug.

If you are new to wearing knee sleeves we recommend going with the recommended fit instead of sizing down, especially if you fall on size medium or smaller

Forge Powerlifting Singlet

JCMB-team — Thu, 14 Nov 2024 21:00:22 +0000

A tailored fit for both men and women, developed through collaboration with world class athletes. Built with a heavyweight, durable, and breathable fabric developed in Great Britain.

Forge is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Constructed from heavyweight 350gm double jersey fabric.
Manufactured with Meryl® and Lycra® fibers to stay soft and breathable, while providing durability and compression.
IPF approved and IWF compliant.
Manufactured in Great Britain.

Size	Weight (kg)	Weight (lbs)
XS	<50	<110
S	50-60	110-132
M	60-70	132-154
L	70-85	154-187
XL	85-100	187-220
2XL	100-115	220-254
3XL	115-130	254-287
4XL	130-145	287-320
5XL	145+	320+

Our singlets are sized based on athlete weight. However, athletes who are tall or short for their weight class are recommended to adjust up or down by one size respectively.

Forge 13mm Lever Belt

JCMB-team — Thu, 14 Nov 2024 21:00:18 +0000

Featuring a patented gliding lever, providing the adjustability of a prong belt with the ease and tightness of a lever belt. Ideal for sizing up or down whenever you need during training sessions and competitions.

The 13mm lever belt offers the maximum specifications allowed in competitive powerlifting, with four layers of British leather and suede, combined with our patented lever, allowing for the utmost tightness and support.

Designed through collaboration with world class athletes, coaches, and health professionals.

13mm thickness and 10cm in width.
Black oiled leather finish with a red suede interior.
IPF approved.
Made exclusively from British cowhide.
Manufactured in Great Britain.

Size	Range (cm)	Range (in)
XS	57.5-70	22.5-27.5
S	65-80	25.5-31.5
M	72.5-90	28.5-35.5
L	80-100	31.5-39.5
XL	87.5-110	34.5-43.5
2XL	95-120	37.5-47
3XL	102.5-130	40.5-51
4XL	110-140	43.5-55
5XL	117.5-150	46.5-59

If you already own a belt, we recommend measuring your current belt on the tightest setting you use to give you the circumference of the belt at the setting you usually use.

If you do not have a belt then please measure your waist where the belt will sit (which is normally just above the navel), with your abdominal muscles braced. Please do not use your trouser waist measurement as this will not be accurate for the belt measurement.

We typically recommend a belt where you fall in the middle of the sizing guide, as this will allow you to adjust the belt in either direction depending on your preference of fit, what exercise you are using the belt for, should your bodyweight change, or if you wear the belt over layers of clothes or a neoprene belt.

Forge Wrist Wraps

JCMB-team — Thu, 14 Nov 2024 21:00:14 +0000

Wrist wraps relied on by strength athletes around the world, available in two versions and three lengths, to accommodate for every preference.

Flexible – Designed to support the wrist while allowing the wrist to flex, designed for superior molding to the wrist, and upgraded comfort during supported wrist flexion.

Stiff – Designed to cast and immobilize the wrist, now with a softer finish, to resist wrist flexion while minimizing discomfort.

Forge is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Sold as a pair.
IPF approved with the maximum width (8cm) and available up to the maximum length (1m).
Proprietary wide elastics developed and manufactured specifically for wrist support.
Left and right designs for equal wrapping of each wrist.
Powered by VELCRO® Brand hook and loop.
Manufactured in Great Britain.

Size
Small (40cm/15.7in)	Small wrists
Medium (60cm/23.6in)	Standard size for medium-large wrists
Large (100cm/39.4in)	Maximum competitive use

Support
Flexible	To allow some wrist flexion
Stiff	To fully immobilize the wrist

Forge Tank

JCMB-team — Thu, 14 Nov 2024 21:00:07 +0000

Manufactured fully in the UK from cotton to sewing, the SBD tank can endure the toughest training. Developed in conjunction with athlete feedback.

Forge is a limited edition collection, offering the same performance and manufactured to the same high standards as our classic product line.

Featuring an SBD logo print on the chest.
Boxy fit.
Comfortable and durable, designed to endure years of use in training.
Knitted with 100% Good Earth Cotton®.
Manufactured in Great Britain.

Size	Men’s Fit (cm)	Men’s Fit (in)
XS	90 – 96	35 ½ – 37 ¾
S	96 – 102	37 ¾ – 40 ¼
M	102 – 108	40 ¼ – 42 ½
L	108 – 114	42 ½ – 45
XL	114 – 122	45 – 48
2XL	122 – 130	48 – 51 ¼
3XL	130 – 138	51 ¼ – 54 ¼
4XL	138 – 146	54 ¼ – 57 ½
5XL	146 – 154	57 ½ – 60 ¾

Size	Women’s Fit (cm)	Women’s Fit (in)
XS	80 – 84	31 ½ – 33
S	84 – 88	33 – 34 ¾
M	88 – 92	34 ¾ – 36 ¼
L	92 – 96	36 ¼ – 37 ¾
XL	96 – 100	37 ¾ – 39 ¼
2XL	100 – 104	39 ¼ – 41
3XL	104 – 108	41 – 42 ½

NOTE: Our tanks are designed to fit tighter across the chest than our t-shirts do.

The measurements for our tanks are based off of chest circumference.