The BUFF CoolNet UV Pack Speed Cap is a lightweight running hat designed for hot-weather road and trail sessions. Its packable construction can be folded into a small space without permanently losing its shape, making it easy to carry in a vest or pocket when cloud cover or conditions change.
BUFF specifies UPF 50 sun protection, enhanced airflow and a moisture-managing sweatband. The cap uses a flexible brim, an adjustable low-profile closure and reflective details intended to improve visibility in dim conditions. Current product information lists a weight of about 35 g and 86% recycled content for selected versions. Fit should still be checked against BUFF’s size chart because S/M and L/XL options cover different head circumferences.
This is a sun and sweat-management accessory, not waterproof headwear or a substitute for a running light after dark. Colours and size variants are grouped under one model entry. The US$40 catalogue price reflects BUFF’s standard US listing for the Acro colourway checked in October 2026; special graphics and regional prices may differ.
