Simms Lightweight Baselayer Top #13309 Simms' Lightweight Baselayer Top is the essential next-to-skin layer for building a rock-solid foundation that prioritizes all-day mobility, warmth and wicking. * Jersey knit brushed polyester combined with sustainable odor control and speed dry moisture management for maximum next to skin comfort * Raglan sleeves for optimal fit and movement * Flatlock seam construction for next to skin comfort FABRIC TECH: Body - 192 gsm 92% spun polyester, 8% spandex finished with HeiQ Fresh odor control + HeiQ Speed Dry - ITEM #: PG-13309