Structure of arrays is a pretty well known pattern for improving memory density and enabling vectorization in high performance code. Also known as parallel arrays[1]. After hand-rolling yet another of these it occurred to me that you make a reasonable first implementation with a simple alias template. template< typename... Ts > using soa = std::tuple< std::vector<Ts>... >; example: soa<int,float,std::string> data; This is decent start but has several issues including: * nothing to preserve the invariant keeping the arrays the same length * missing coalesced interface for vector methods (size, reserve, etc) * no iterator * wasted storage for duplicated allocators, capacities, sizes * sizeof...(Ts) allocations could be a single large block The work required to address these issues is not too great I think. Potential names: soa<Ts> structure_of_arrays<Ts> parallel_array<Ts> struct_array<Ts> parallel_vector<Ts> struct_vector<Ts> Does this already exist somewhere? Does it seem useful? [1]https://en.wikipedia.org/wiki/Parallel_array