The Camo Walking Trouser by ARIES, London.

Details
Unisex walking-style trousers with a chunky vislon front zip, velcro side tabs to adjust the waist and zipped side pockets. Made from an all over cylindrically printed camo cotton twill and finished with a garment dye, with an Aries mini carabiner hanging from a loop at the waist
100% Cotton
Fits true to size