With over 10 years experience in the umbrella industry, Boston is firmly established as a fashion accessory and an essential part of every womans wardrobe. All designes are waterproof and UV sun resistant. Boston umbrellas reflect your good taste and fashion sense and are much more than merely protection against the elements! Frame: Silver Rustproof Aluminium, 5 section shaft, 6 ribs with fibreglass extensions. Canopy: Unique 4.5cm wide self fabric fastening strap with velcro, Waterproof, UV protection waterproof case. Dimensions: canopy diameter 90cm, 18(l) x 3.5(w) cm, umbrella weight 175gms. 1 year guarantee