Jack Pyke 25L Rucksack - Stalking Daypack Colour:Green The part is also listed

The part is also listed for use with the FX Crown MK2 and equivalent Impact models where the same fill port design is used

so it's fully waterproof and fogproof as well as shockproof

comes in two colors

Wind beater

Jack Pyke 25L Rucksack - Stalking Daypack Colour:Green The part is also listedThe Jack Pyke 25 litre rucksack is a light, compact daypack built for a long day's stalking or general time in the field. Made from hard wearing 600D Cordura, it stands up to brambles, briars and bad weather without adding bulk. The standout feature is the AirJet back ventilation system, which lifts the pack off your spine to keep air moving and your back cool on the walk in. Storage is well thought out: a drawstring main compartment with a zipped top