P37 haversack, or small pack CANADA

The haversack,(small pack), could be worn suspended on the brace ends below the waist, as was done in full marching order, or worn on the back with the addition of a pair of "L" shaped straps The haversack was originally intended to carry the water bottle and mess tin though these were often worn outside the haversack in web carriers, especially by infantrymen. The haversack was used to carry necessities for a 24 hour period; , the groundsheet was carried by regulation in the haversack and tucked under the flap. In action, it was often left with personal kit in the unit baggage, and the rain cape substituted as a waterproof garment, despite repeated orders not to undertake that practice