Free shipping + 90-Day Money Back Guarantee
Free shipping + 90-Day Money Back Guarantee
Free shipping + 90-Day Money Back Guarantee
Slim Weighted Full Core Forearm Sleeves
Slim Weighted Full Core Forearm Sleeves
Slim Weighted Full Core Forearm Sleeves
4.3/5
4.3/5
0.5 kg / 1.1 lbs
WEIGHTED SLEEVES
Grows your biceps on autopilot
Grow your biceps on autopilot
Free Delivery
Discreet weight integrated directly into fabric
Train your arms even outside the gym
Train your arms outside the gym
More than 50M+ views on socials
Slim edition
:
0.5 kg / 1.1 lbs
Slim edition
:
0.5 kg / 1.1 lbs
Color:
Color:
In stock, ships within 24 hours
Return policy - 100% Satisfaction Guarantee
Product Quality Assured - Verified by a 120,000 people Community and 3rd-party certified
Free Shipping & Delivery (All-Inclusive Pricing)
Personal Size & Fit Chart
More Weighted Sleeves
More Weighted ARM Sleeves
More Weighted Sleeves
Slim Weighted Full Core Forearm Sleeves
4.3/5
Slim Weighted Full Core Forearm Sleeves Pro
4.3/5
Heavy-Weighted Forearm Sleeves
4.3/5
Heavy Weighted Forearm Sleeves Pro
5%
OFF
4.3/5
Regular Short-sleeve
4.3/5
Regular Crew Socks
4.3/5
2 kg Weighted Forearm Sleeves + Free Awesome Merch Welcome Kit
30%
OFF
4.3/5
1 kg weighted forearm sleeves + 2-pair crew socks bundle
20%
OFF
4.3/5
BUILD BIGGER BICEPS & ARMS
no time?
no gym?
feels impossible?
CLOTHES THAT MAKES YOU go "WOW"!
A FEELING you won't believe!
THE WORLD'S HEAVIEST FABRIC!
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HEAR FROM THE FOUNDER HIMSELF
BICEP GROWTH
DOESN'T HAVE TO
BE HARD
You don't need to spend hours in the gym
or follow boring workouts to get bigger biceps.
The easiest way is to start training biceps like an endurance athlete, not a sprinter.
Easy
Convenient
Simple
30X
GREATER BICEP ACTIVATION
100%
MORE CONFIDENCE
NO
EXTRA EFFORT
1. SMALL BICEPS IS NOT YOUR FAULT
Up to 50% of biceps are made out of slow-twitch (Type-1) muscle fibers. Your genetics might be the reason your biceps stay small.
2. ONE PAIR OF SLEEVES.
BICEP GROWTH ON AUTOPILOT.
Slow progress, lack of time and daunting workouts can make big arms feel like more trouble than they're worth. Not anymore.
3. THE WORLD'S HEAVIEST FABRIC
Absurdly heavy. Surprisingly comfortable. Slim enough to blend in, and stretchy like sportswear to move with you.
The Story Behind The Weighted Forearm Sleeves
1. SMALL BICEPS IS NOT YOUR FAULT
Up to 50% of biceps are made out of slow-twitch (Type-1) muscle fibers. Your genetics might be the reason your biceps stay small.
2. ONE PAIR OF SLEEVES.
BICEP GROWTH ON AUTOPILOT.
Slow progress, lack of time and daunting workouts can make big arms feel like more trouble than they're worth. Not anymore.
3. THE WORLD'S HEAVIEST FABRIC
Absurdly heavy. Surprisingly comfortable. Slim enough to blend in, and stretchy like sportswear to move with you.
Don’t just take
our word for it.
I'm really excited that I received the garments and was able to use them for training - it is super impressive, I was really mind-blown.
Suresh
Verified Buyer
Great product, the fit is nice and the weight feels good on your arms.
Mohinder
Verified Buyer
I bought the weighted forearm an they fit like a glove and stay put really well. I would love to see them available in multiple colours!
Pushpendra
Verified Buyer
I'm really excited that I received the sleeves and was able to use them for training & recovery. it is super impressive, I was really mind-blown. The design looks clean to.
Ishaan
Verified Buyer
Multiple payment options available
Any last questions?
We're here.
Offer Ends In:
04 : 12 : 45 : 20
What are you waiting for?
CLOTHES THAT MAKES YOU go "WOW"!
A FEELING you won't believe!
THE WORLD'S HEAVIEST FABRIC!
Stop neglecting 50%
of your biceps
Stop neglecting 50%
of your biceps
More than 50% of your biceps could be made up of slow-twitch muscle fiber (Type 1), but you’re
focusing only on the other half.
To maximize muscle growth you may need to start training your arms as if preparing for a marathon, not a sprint.
Easy
Convenient
Impossible to skip
Lighter weights and higher reps stimulate growth in slow-twitch (type I) muscle fibres. Heavy, low-rep training won't grow them the same way.
This applies no matter your personal ratio*
Lighter weights and higher reps stimulate growth in slow-twitch (type I) muscle fibres. Heavy, low-rep training won't grow them the same way.
This applies no matter your personal ratio*
3 Signs You Have >50% Type-1 Muscle Fibers
Why Wearing Weight Matters More Than You Think
To efficiently train the slow-twitch muscle fibres in your biceps, you need highly targeted exercises for an extended period of time, which is only possible with a moderately low weight.
The Big Issue & The Reason You Need Natural Resistance
Longer sessions of lightweight biceps exercise can be awkward or better said close to impossible to fit into everyday life. After all, who wants to walk around holding dumbbells all day?
The NR Method
Natural Resistance proposes a new type of training method based on lightweight, high-rep exercise using wearable weights to help you achieve your fitness goal in a more convenient way to exercise.
How It Works
By wearing Natural Resistance throughout the day, you are essentially stacking a very high number of moderately weighted reps / biceps curls throughout your whole day. A total session time that greatly exceeds that of going to the gym! Therefore, this type of exercise more closely resembles that of an endurance athlete rather than a sprinter (which is what weightlifting resembles).
*The type 1, type 2 split is individual and differs between people.
Don’t just take
our word for it.
I'm really excited that I received the garments and was able to use them for training - it is super impressive, I was really mind-blown.
Daniela
Verified Buyer
I’ve received the shorts, and wow what an amazing material!
It really feels like this material has a lot of potential.
Viktor
Verified Buyer
The Hybrid Shorts are great! I came across Natural Resistance on Instagram and liked the concept straight away. I ordered the Hybrid Shorts and tried them on a slow run. They fit snug, look and feel similar to my normal running tights just slightly thicker at the weighted parts. The extra weight is definitely noticeable once you get moving. I would love to see a pocket added for my phone, but overall I’m very happy with them!
Mats
Verified Buyer
I bought the weighted forearm & calf sleeves mainly for my daily walks & runs and I’m really impressed. They fit like a glove and stay put really well. I would love to see them available in multiple colours!
Mounir A.
Verified Buyer
Great product, the fit is nice and the weight feels good on your arms.
Ercan A.
Verified Buyer
I'm really excited that I received the sleeves and was able to use them for training & recovery. it is super impressive, I was really mind-blown. The design looks clean to.
Sam v.
Verified Buyer
I was really excited to receive the gear and finally put it to the test during training. It honestly exceeded my expectations. I was blown away by how impressive it felt!
Erik H.
Verified Buyer
Multiple payment options and secure payment available
Any last questions?
We're here.
Any last questions?
We're here.
Any last questions?
We're here.
Offer Ends In:
00:00:00:00
What are you waiting for?
©Natural Resistance 2026 All Rights Reserved
©Natural Resistance 2026 All Rights Reserved