Salomon Insulated Soft Flask - 400ml BX PSI The lock ring mounting system

The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation

radially compliant alloy rim injected with SPANK's award-winning Vibrocore to add torsional strength and lateral stiffness

while flush cable guides help ensure quiet performance

Supports hydration and fluid absorption

Width (Drop to Drop): 360 / 380 / 400 / 420 / 440mm

Salomon Insulated Soft Flask - 400ml BX PSI The lock ring mounting systemWeve adapted our classic Soft Flask with dual skin insulation to keep your water in liquid form in winter. The new bite valve evacuates any ice build up with a quick squeeze and the handle provides extra grip, so you can drink easily on the move. Compatible with all our 42mm lids including our summer versions to your liquids cool in the sun. Why you'll love it Ideal temperature Dual skin insulation limits heating in summer and stops freezing in