Natural Resistance

We’ve reinvented athletic wear with the world’s heaviest fabric technology. Natural Resistance shorts embed 5.5kg of weight into ultra-thin 1.5mm fabric – no inserts, no bulk, just pure innovation. This breakthrough lets you turn every movement into strength training while looking stylish. Whether you’re an elite athlete or simply walking to work, these shorts naturally boost your performance and calorie burn. Validated by the University of Gothenburg, we’re not just making shorts – we’re transforming how people train. Want to wear your workout?