For Bad Hair Days and Worse Weather.

The Arc'teryx Small Bird Cap is what happens when a classic ball cap gets a technical upgrade and decides it’s too good for gas station souvenir racks. Lightweight, breathable, and built for movement, this cap is made for trail runs, hikes, ski tours, range days, and every “might as well stay outside” moment in between.

Built from a technical stretch polyester weave—the same structured mesh used in Arc'teryx climbing harnesses—the Small Bird Cap balances airflow, durability, and flexibility without turning into a sweaty disaster halfway through the day. The air-permeable construction keeps heat moving out, while the FC0 DWR finish sheds light moisture when the weather inevitably changes its mind.

Inside, the Spacermesh™ sweatband handles moisture management so sweat stays out of your eyes and off your sunglasses. The adjustable TPU strap and low-profile buckle keep the fit secure without snagging on packs, hoods, or headset bands.

Minimalist, technical, and low-key enough to wear literally everywhere, this is the hat that quietly becomes your default.

Specs & Features:

• Lightweight technical stretch polyester construction
• Air permeable for breathable all-day comfort
• FC0 DWR finish repels light moisture
• Spacermesh™ sweatband for moisture management
• Adjustable TPU rear strap with low-profile buckle
• Durable structured weave inspired by Arc'teryx climbing harnesses
• Lightweight: 59g / 2.1 oz
• Ideal for hiking, trail running, travel, training, and everyday wear
• PFAS compliant and bluesign® approved materials

Why We Love It

Some hats become permanent truck-seat residents. This is one of them. It’s light, breathable, and doesn’t turn into a sweat sponge when temps climb. The fit stays secure during movement, and the clean low-profile look works just as well on trail as it does grabbing coffee afterward pretending you didn’t just suffer uphill for three hours.