Maximize comfort and minimal weight with this advanced sun protection layer. Weighing a mere 125 grams (size M), it's constructed from premium Toray fabric that offers UPF 23+ defense, superior moisture-wicking, and rapid drying. The highly breathable material and four-way stretch ensure a cool, unrestricted feel ideal for high-output activities in warm weather. Designed for full coverage, it features an integrated hooded high neck and thumbhole cuffs to protect more skin from the sun. This minimalist, highly functional top is an essential piece for runners, hikers, and climbers seeking lightweight defense against sun exposure.