Sidas Volume Reducers - 5 mm Size:X-Small High-flow Blaster™ bite valve self

High-flow Blaster™ bite valve self seals after each sip and features a twist on/off bar to prevent leaks when not in use

Designed with a women's foot in mind

An adjustable baffle maintains a low-profile when filled and increases stabilization during high impact activities

reliable use in compacted snow

A modern backcountry ski guide for the roadside areas found along The Icefields Parkway in Banff National Park

Sidas Volume Reducers - 5 mm Size:X-Small High-flow Blaster™ bite valve selfThis volume reducer can be placed under the liner or the insole to reduce the fitting room and provide better foot support inside the boot, for superior precision. Available 5mm thickness (medium density). Can be trimmed to ensure a better fit inside the boot. Sidas Volume Reducer Size Guide Size XS S M L XL XXL M. P 22 23 23. 5 24. 5 25 26. 5 27 28 28. 5 29. 5 29. 5 31 U. S 3 4 5 6 7 8 9 10 11 12 13 14 U. K 2 3 4 5 6 7 8 9 10 11 12 13