On Zero Shorts - Ultra-Lightweight Race Day Performance with Built-In Storage

The On Zero Shorts are ultra-lightweight and engineered for race day and training with no distractions. Stretch-woven perforated outer with soft-feel quick-drying inner brief keeps you fresh as you pick up the pace. One zip pocket and two gel pockets at the back handle storage for race day essentials. Adjustable waistband for comfortable, secure fit. Graphic inspired by prints worn by On athletes.

Perforated Outer for High Ventilation

Stretch-woven perforated fabric improves ventilation during hard efforts, helping you feel fresh as pace increases. This lightweight construction moves naturally with the body without restriction, whilst the perforations create active airflow to manage heat during race pace and sustained training. The result is shorts that genuinely disappear during wear.

Quick-Drying Inner Brief

Soft-feel, quick-drying inner brief sits comfortably against skin without causing friction during sustained running efforts. The brief construction eliminates the need for separate layers whilst maintaining comfortable coverage throughout race day and training sessions.

Built-In Storage with Zip and Gel Pockets

One zip pocket and two mesh gel pockets at the back provide practical storage for race day essentials. This pocket configuration handles energy gels, keys, and small items without requiring belts or additional carrying solutions across most racing distances. Pocket placement keeps essentials accessible without disrupting stride.

Key Features:

- Ultra-lightweight stretch-woven perforated outer

- Improved ventilation through perforated fabric

- Soft-feel quick-drying inner brief

- One zip pocket at back

- Two gel mesh pockets at back

- Adjustable waistband

- Graphic inspired by On athletes

- Race day performance construction

Best For:

- Race day (5K to marathon)

- Tempo runs

- Track sessions

- Fast training efforts

- Warm weather running

- Runners needing gel storage

- Speed workouts

Are the On Zero Shorts Right for You?

Ultra-lightweight perforated construction that actively ventilates rather than just using lighter fabric, the difference is noticeable when you're working hard and heat management becomes a performance factor. The stretch-woven outer moves naturally without restriction whilst the soft-feel brief eliminates the friction that makes some lightweight shorts uncomfortable over race distances. One zip and two gel pockets at the back handle everything you need without a belt for most racing distances. Adjustable waistband keeps things secure across varied paces without constant adjustment. The On athlete-inspired graphic adds finish-line presence without compromising the performance-first construction. If you want race day shorts that genuinely stay out of the way whilst keeping you ventilated and carrying your essentials, the Zero Shorts are built for exactly that.