The Radian’s distinguished lid design features a modern center-mounted spout and innovative twist-on cap, providing an ultra-secure seal—just a half twist until snug, and the bottle is securely closed. The unique, flexible carry loop detaches at the base, making it easy to secure keys or clip the bottle to a gym bag.

Double-wall vacuum insulation means shakes stay chilled to the last drop, for up to 24 hours. The stainless steel Radian bottle is extremely durable, resists condensation, and—like all BlenderBottle brand shaker cups—is BPA and phthalate free.

Unquestionably on trend, the Radian’s sleek style is functional, too. The bottle’s tapered base fits easily in most car or gym equipment cup holders, keeping protein drinks or hydration at the ready.