Women's Brooks Glycerin 21 Size:UK4 Breathable pool sock with Silicone

Breathable pool sock with Silicone Grip

That's why we designed this to lock in while you're in motion

Durable outsole with slightly raised rubber knobs for added grip & traction

Shape Retention - fabric stretches so you can enjoy your swim without feeling restricted

Perforated panels for strategic ventilation

Women's Brooks Glycerin 21 Size:UK4 Breathable pool sock with SiliconeProduct Details Enjoy supreme softness and ultimate comfort from your first step. The neutral Glycerin 21 women's running shoe provides a plush ride thanks to more DNA LOFT v3 cushioning than before plus a new, more streamlined upper that delivers structure and breathability. Features Supreme softness Improved fit Smooth, stable transitions