This is a long-sleeve base layer from The North Face. I've worn it about twice since I bought it. It's in good condition, but please understand that it's a used item before considering a purchase. Product Number: NTW62311 Product Name: Long Sleeve FlashDry Zip Up Size: L Gender: Women's Color: Tin Gray Size: L Features: UV Protect (UPF50+, UV protection rate of 95% or more) Suggested Retail Price: 9240 yen *********‘************************************* The following is an excerpt from the website: This is a high-performance long-sleeve zip shirt that prioritizes quick-drying and breathability. It uses polypropylene on the skin side, which doesn't absorb water, reducing the risk of chilling from sweat. The grid-like texture keeps the skin feeling dry. The surface is made of highly breathable polyester with excellent sweat-wicking and quick-drying properties. The use of flat fibers allows air to pass through easily, effectively expelling stuffiness inside the clothing. It employs an electrostatic care design to suppress the generation of static electricity. The slightly thick fabric provides a supple feel, making it a versatile piece for various outdoor activities such as long-distance hiking and summer camping.