Blue Green Purple Spiral Shells Showerproof Cushion - Showerproof Garden Cushions - Blue green turquoise CushionSummer Days Contemporary Spiral Shells Shower Proof Canvas Cushions are printed using designs from my hand painted silk originals, the stunning shades Blue Green and Turquoise give a lovely summery effect on classic garden furniture. A stunning splash of colour on any garden bench or seat. Practical Comfort for your Garden Dinner Parties. The fabric on these is a water proof canvas which is strong durable fabric for exterior use. No need to worry