Great multi-function bag to carry breastmilk and pump. Size: 9.4" x 6.7" x 10.6 Only used a couple of times, like new condition. Details: Fits most pumps. I could just about fit in my Spectra pump (tight but doable!) Straps can be adjusted for different carrying styles. Waterpoof and leakproof. Insulated section at bottom for carrying milk or other items. 2 ice packs included (have been 'activated' already, so just need to refreeze to use). Amazon link for more details and reviews: https://www.amazon.com/gp/product/B0B1D67H6Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1