To provide a moisture-curing type curable composition which is quickly cured with moisture to give a cured product having elasticity and excellent transparency, and can be produced at a low cost.

This curable composition comprises a curable composition comprising a vinylic polymer having cross-linkable silyl groups represented by formula (1): -[Si(R1)2-b(Y)bO]m-Si(R2)3-a(Y)a [R1 and R2 are each a 1 to 20C alkyl, a 6 to 20C aryl, a 7 to 20C aralkyl, or the like; Y is OH or a hydrolyzable group; (a) is 0, 1, 2, to 3; (b) is 0, 1 or 2; (m) is an integer of 0 to 19, where (a)+(m)(b)≥1], at the terminals, and a filler having a refractive index difference of ≤0.02 between the refractive index of the curable composition and that of the filler, and gives a 1 mm-thick cured coating film having a haze value of ≤10.