Detailed description
UPF50+ PROFESSIONAL UV SUN PROTECTION: UPF50+ certified premium polyester fabric blocks over 98% UVA/UVB rays, flexible flip-up visor shields eyes from strong sunlight and glare during outdoor cycling, avoid facial sunburn。
HIGH PERFORMANCE SWEAT-WICKING & QUICK DRY: Moisture transport fabric rapidly absorbs and evaporates sweat, built-in inner elastic sweatband prevents sweat dripping into eyes; lightweight breathable mesh construction keeps head cool without stuffiness for long-distance riding。
SLIM LOW-PROFILE DESIGN FITS UNDER HELMETS: Thin streamlined tailoring with no bulky excess fabric, perfectly worn underneath all kinds of bike helmets without squeezing head or pushing helmet up, dual-use for alone wear or helmet liner。
STRETCH ONE SIZE FITS MOST ADULT HEADS: High elastic stretch material fits head circumference 54–61cm comfortably, close-fitting but not tight, stays stable on head during fast cycling, climbing and intense sports without slipping off。
VERSATILE MULTI-SCENE SPORTS CAP: Ideal for road biking, mountain cycling, running, hiking, fishing, motorcycle riding and outdoor workout; foldable compact for easy storage in jersey pocket or backpack, classic solid color matches all sportswear。