3F UL Gear is a Chinese outdoor equipment brand specializing in ultralight backpacking gear. Renowned for producing high-quality, affordable ultralight tents and gear, it has gained popularity among hikers and adventurers looking for reliable, lightweight solutions. One of their most well-known products is the Lanshan series of tents, which includes models like the Lanshan 1 Pro and Lanshan 2 Pro.

3F UL Gear products are designed with a focus on functionality and performance, making them a great choice for both beginner and seasoned hikers. The brand's commitment to durable materials and user-friendly designs has helped it carve out a niche in the competitive ultralight gear market​.