The 12 oz Straw Cap with a raised grip oval sleeve pattern. The Straw Cap delivers upright, spillproof sipping (no tipping required). The 12 oz is an ideal everyday companion that fits into handbags, backpacks and car cupholders. The volume works well for active kids as well as adults seeking a smaller capacity, lighter weight bottle. All caps from 16 and 22 oz bottles will fit on the 12 oz bottles.