Whether you're tackling steep switchbacks or exploring rugged ridgelines, the Runbold IV Shorts are your go-to for fast-paced hiking and high-alpine adventure. An evolution of our best-selling style, this fourth-generation update keeps everything you loved and improves on what you need—lightweight stretch, versatile storage, and all-day comfort.

Designed with an athletic cut and made from a durable polyamide-spandex blend, these shorts offer 4-way stretch for unrestricted movement on technical terrain. An adjustable waistband lets you personalize the fit on the fly, while the quick-drying fabric and wicking finish ensure you stay dry and comfortable through changing conditions.

Equipped with four zippered pockets—including two hand pockets, one leg pocket, and one at the rear—these shorts keep your trail essentials secure and accessible. And thanks to the use of recycled materials and bluesign®-certified fabrics, they do right by the planet as well as your performance.

Why you'll love them:

• Four-way stretch fabric moves with you over every step, scramble, and stride

• Quick-drying and moisture-wicking to keep sweat off your skin on warm climbs

• Adjustable waistband provides a dialed-in, chafe-free fit

• UPF 50+ sun protection for long days above the treeline

• Four secure zip pockets for stashing maps, snacks, and summit essentials

• Recycled materials and bluesign® certification reflect a lower-impact design

• Fair Wear certification ensures ethical production standards

Tech Specs:

• Fit: Athletic

• Weight: 184 g

• Main fabric: 85% Polyamide (recycled), 15% Spandex

• Lining: 100% Polyester

• UPF: 50+