Women's BrunnaCo Lolo Wide-brim Jute Boater Hat - Black - Hats The Lolo Hat is a contemporary take on the classic boater hat, thoughtfully handcrafted from 100% natural jute fiber. Renowned for its distinctive texture and natural Uv-protection, jute has become one of BrunnaCo s most coveted plant-based materials. 100% Straw.