A resilient microfiber chassis

and reinforced high-wear zones provide confident movement

they pair a durable 600D polyfabric chassis with stretch panels and a pre-curved ergonomic fit for confident movement on demanding terrain

and cuts impact forces by up to 90% vs passive Level 1 back protection

combo back csf tee short sleeve red white Size:XS A resilient microfiber chassisThe Combo Back CSF Short Sleeve Tee is a premium sportswear staple built for everyday comfort and clean motorsport inspired style. Constructed from a cotton poly blend for easy all year wear, it features soft hand front and back Astars logo graphics, plus an internal neck print and external labeling for a refined finish.