BUFF Summit Cap Solid Powder S/M - Recycled Polyester Running Cap UPF 50+

With a UPF 50+ sun protection rating and a crown made from 96% recycled polyester, the BUFF Summit Cap in Solid Powder shields you from harsh rays while keeping your environmental footprint light. Weighing just 55 grams, it disappears on your head during long trail runs and hikes.

Overview

The BUFF Summit Cap is a performance running and hiking cap built for high-output activities in warm weather. Its low-profile, ergonomic design sits snugly without pressure points, while the flexible, foldable visor retains its memory shape even after being stuffed into a pocket or pack. The adjustable drawstring closure with stopper ensures a secure, personalized fit for head circumferences from 54 to 57.5 cm (S/M).

What stands out

• UPF 50+ certified sun protection for the scalp and forehead.
• Ultra-light 55 g construction with advanced sweat-wicking and fast-drying fabric.
• Laser-cut ventilation holes maximize airflow during intense efforts.
• Visor is fully foldable and packable without losing its shape.
• Crown fabric contains 96% recycled polyester, supporting sustainable gear choices.

Technical details

• Material (crown): 96% recycled polyester, 4% elastane for stretch and recovery.
• Material (visor): 100% recycled polyester with memory-shape flexibility.
• Sun protection: UPF 50+ blocks over 98% of UVA/UVB rays.
• Moisture management: quick-drying, sweat-wicking fabric keeps you dry.
• Breathability: laser-cut ventilation holes enhance airflow.
• Closure: adjustable drawstring with stopper for a custom fit.
• Size: S/M (54–57.5 cm head circumference).
• Weight: approximately 55 g.
• Color: Solid Powder.
• Intended use: running, trail running, hiking, and other outdoor activities.

Our verdict

The BUFF Summit Cap combines featherlight comfort, serious sun protection, and eco-conscious materials in a packable design that's ready for any sunny adventure. If you want a cap that performs as hard as you do without weighing you down, this is it.