Description
Royal Robbins Expedition III L/S – Men’s Shirt
The ultimate hiking shirt, designed for maximum performance, offering chemical-free mosquito protection and UPF 40+ sun protection. The 100% recycled polyester ripstop fabric is breathable, quick-drying, and resistant to wrinkles and stains.
- Built-in Mosquito Protection (MPT) – A chemical-free, tightly woven technology that creates a robust barrier against mosquitos that won’t wash out or wear off.
- UPF 40+ Sun Protection – Blocks harmful UV rays to protect your skin on long days outdoors.
- Adjustable Collar and Cuffs – The fold-down, button-closure collar adds sun and mosquito protection. Adjustable cuffs allow you to cinch or roll up based on conditions.
- Built for Heat – Highly breathable and quick-drying fabric wicks away moisture efficiently, making it ideal for hot or humid conditions.
- Pocket Details – Zippered chest pocket on the right side.
- Packable and Breathable – Ultralight, weighing only 164g, it packs down small and resists wrinkles.
- Award-winning Mosquito Protection – The Expedition III L/S was recognized among the TIME Best Inventions of 2025.
Technical Specifications
- Material: 100% Recycled Polyester
- UPF: 40+
- Back Length: 74.3 cm (29.25 in)
- Weight: 164 g (5.8 oz)
- Fit: Standard
- Sleeve Type: Long Sleeve
- Closure: Buttons
- Pockets: Zippered Chest Pocket
Environmental Info
Made from recycled polyester to reduce environmental impact.








