Mont Fusion Down Jacket Women's sunscreen It has excellent dryness and

It has excellent dryness and carrying capacity in addition to superior whitewater performance

which not only reduces drag but also helps to reduce the tendency for the tail to bog down on boily eddy lines or when getting bounced around by large lateral waves

Put another way

If ordering online

Mont Fusion Down Jacket Women's sunscreen It has excellent dryness and750+ loft RDS down with DWR Loft treatment, Hydronaute XT water resistant, highly breathable shell & boxwalled baffles for exceptional warmth & minimum weight. Hydronaute XT fabric provides a significant performance advantage over standard Nylon down garments; it protects the down from exterior moisture while actively removing internal moisture (perspiration) to keep you dryer & warmer. DWR Loft treated down is more resilient in damp conditions