Women's Brooks Glycerin 21 Size:UK4 The 100% Tactel® inner layer

The 100% Tactel® inner layer stays with the foot

COOLMAX ® & LYCRA ® are trademarks of The LYCRA Company

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

The insoles also have an advanced design TPU arch brace in order to produce stability and support that assists all but some high- and low-arched foot types

From pool to beach in classic style

Women's Brooks Glycerin 21 Size:UK4 The 100% Tactel® inner layerProduct 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