sirrus 37 medium grey Colour:Medium Grey Flat-locked seams minimise irritation for

Flat-locked seams minimise irritation for extended

vented strap padding

you can expand it up to 45 litres when you’re allowed a bigger bag – or compress it down to a more compact 30-litre daypack

1% LYCRA® Spandex

it’s the ideal place to get showered

sirrus 37 medium grey Colour:Medium Grey Flat-locked seams minimise irritation forTop loading capacity for big adventures For the biggest days in the hills or light overnights where you want a traditional lidded pack, the Sirrus 36 delivers, with Osprey's proven AirSpeed suspension. You get a top loading main compartment with buckled closure and fixed top lid, zippered bottom access to a separate collapsible compartment, and removable webbing straps for extra kit. The tensioned mesh backpanel adds comfort and ventilation that gap