BlenderBottleGoStak Food Storage Containers for Protein Powder, Healthy Snacks, and Portion Control, 4-Piece Starter Pak, Black

On this particular set up, The bottom larger container holds for me, a decent full cup mounded of whey mix, the second from bottom holds a flat cup. This ensures I can either have half a mixer bottle or combine both containers to have a rich full bottle.The second from top is a decent size, I use this to hold two cups of Aminos mix, this is enough to fill a full shaker bottle twice. It gives the option to have mix early morning and also another in the evening, should the need arise.The top container is smaller but holds two cups of pre workout, enough for a full shaker cup mix.The configuration is adaptable, you choose how you want stacked, you can buy others and adapt combine.The lids are a good fit, had in bag for a few days and no sign of leaking.They are tight and hopefully will stay that way with use.The lids are also thick enough, no overkill there.The whole things can be used with others to make fit into all size bottles for storage.This set as it stands fits barely into my shaker cup, but you have to remove the shaker ball, if using one.The plastic clear container is reassuringly thick plastic, not too thick not too thin.What I have learnt already is that i need different ones for what i am using them for, I also need more so that i can store vitamin gummy, health pills, creams and so many other things.For a gym drink mix set, I intend to get one vessel large enough for the two scoops of whey, followed by of the tops ones of this set. This eliminates the need for an extra cap and size reduction improves.Combined with another set , I will have all of the gym things secured and ready for whenever I randomly want to hit the gym, take a hike or whatever I am doing at the time.I am hoping that they say secured in my back, I do however make sure to keep powders in a separate part of the bag from clothes, just in case.Have powders away from gym clothing, especially if using white powder and black clothes. If you mix at the gym residue powders cling to outer vessels at times.

Love this for meal prepping small snacks and storing supplements on the go. It's small and adorable. It's easy use, easy to carry around in a lunch box, lids are secure, and works well. Great value for the money

I store spices and tempering things in these containers, as they stack they occupy less space in my kitchen.

This is my second purchase of this item. (I had to replace them because my friend lost them during a trip) Very versatile containers to store supplements or food and surprisingly easy to keep clean. The seal is great and I’ve never had any issues with spills. I love the stackable feature making them easy to fit in a lunch bag, purse, or backpack. They fit everything from protein powder, carrot sticks, salad dressing, nuts and everything in between. Great for managing serving sizes/portion control. You won’t be disappointed!

Great storage concept! The largest jar (150cc) fits 2 scoops of protein powder with some room to spare. The next largest (100cc) fits a single scoop with a little room to spare. The two smallest jars are good for workout mixes, nuts, pills, etc...I love the fact that you can use one jar to open the lid on another. Not more struggling with tight lids! You can do the same with the carrying handle. Great design.The only thing I don't like about these jars is that they are advertised as being able to fit inside a Blender Bottle Classic or Sport. They DO fit, but not all of them TOGETHER. You will have to leave out at least one of the jars if you want to carry them inside the bottle itself, which was part of the reason I was drawn to these jars in the first place; ease of carrying my supplements.A good product overall, but the advertising on the package and on Amazon is a little misleading.

Love these stackers! Perfect for taking to work for protein powder, fiber, nuts, snacks, whatever it is you need! Love these.

I bought these just in time not realizing my husband was going to end up in the hospital for several days just before Memorial day weekend when life was already hectic enough then it was compounded by the extra stress of his illness. This GoStak starter pack was IDEAL for our situation! The largest size holds 2 scoops of Vegansmart or other nutritional shake powder with just enough room left that I was able to stack sodium ascorbate on top (leading cardiologists now refer to some instances of heart disease as "scurvy of the heart".). The smallest size housed my digestive enzymes - wobezym N and Fibrenza (I alternate which ones I use for best results!) The other two cups held a weeks worth of my supplements so I didn't have to reload daily. The only compartment I had to refill was the bottom largest container, 150CC, for the nutritional shake. I bought another batch so even this became less of a chore since I was spending most of my waking hours (and sleeping hours) at the hospital (as one of my docs says, "If you're walking and your talking you have no business being in the hospital, hospitals KILL!") I love my Go Stak so much that we're buying several more so we can better organize our supplements both at home and on the go.The starter set seems to be the best value overall. It comes with 1 each of 40 cc, 60 cc, 100 cc and 150 cc. The 150 cc would be ideal for baby carrots or celery sticks. The 100 cc maybe for ranch dip or peanut butter. Raisins or craisins fill the 60 cc unit perfectly and a handful of pills fits neatly into the 40 cc container. They all mix and match together, interlocking easily in whichever order you prefer. Even if you buy several different colors the lids and the top white loop are all interchangeable. I LOVE the white loop, I can carry 3 or 4 of the Better Bottles and this stack together in one hand along with mail and still have a free hand to open doors or use a key. I LOVE these, I can't say it enough it was a wise purchase and I definitely plan to buy more of them in the future.