Lightweight tent tunnel tent capacity 3 man poles fibreglass application trekking colour blue outer material polyester outer material properties 190t pu coated inner materials 170t breathable polyester hydrostatic head flysheet 3 000 mm base material polyethylene pole diameter 10 mm tent window closable included in delivery carry bag repair kit rods pegs guylines inner tent dimensions 210 x 210 special features inside pockets mosquito net p