Women's 3" Core Running Shorts — Lightweight with Inner Brief

The shorts that get out of the way and let you run.

On's Women's 3" Core Shorts are built around three things runners actually care about: lightweight comfort, a secure inner brief, and enough pockets to leave the armband at home. The fabric is a recycled stretch polyester that moves with you and stays light on the run — no bunching, no riding up, no distractions.

The flat elastic waistband lies flush against the skin without digging in, and the soft inner brief stays put through long efforts. Three pockets — including a zippered back pocket and two deep front drop-in pockets — handle your phone, keys, gels, and anything else you need within reach on the move.

At a 3" inseam, these sit at the shorter end of the spectrum — great for warm-weather running, trail days, or gym training. True to size with a regular fit. Made from 100% recycled polyester shell and an 88% recycled polyester / 12% elastane inner brief.

• Lightweight recycled stretch polyester — moves freely, stays breathable
• Secure inner brief — soft, stays in place through long efforts
• 3 pockets — zippered back pocket plus two deep front drop-ins
• Flat elastic waistband — comfortable, won't dig in
• 3" inseam — regular fit, true to size
• 100% recycled polyester shell — bluesign® approved materials