ON 5" Core Shorts Clothing Size:S Featuring the iconic GuideRails™ support

Featuring the iconic GuideRails™ support system and an engineered mesh upper that balances stretch and structure

easy access

Unless you enjoy being doubled over

breathable stretch fabric

Coros' latest multi-channel optical sensor for precise measurement

ON 5" Core Shorts Clothing Size:S Featuring the iconic GuideRails™ supportThe ON 5" Core Shorts are lightweight running shorts designed for comfort, mobility, and practical storage on everyday runs. Built with breathable recycled polyester fabric and a supportive inner brief, they provide secure coverage while allowing you to move freely and stay focused on your run. The elastic waistband and adjustable drawcord deliver a personalised fit, while the streamlined design keeps things simple and distraction free. With side