Sparthos High Altitude Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels]

Just got back from 5 miles of roadwork. This product is legit. As soon as I took it off, I noticed my lung capacity increased. I feel amazing and after the first use of this product, I can already tell you this is absolutely worth it especially for the price. The size is fine I have a big nose though so it kinda is annoying pressure absolutely amazing mask it’s kind of hard to believe how they can sell something so good for so cheap. I appreciate companies like this. Not to mention how beautiful the Boxing and the case is. Very impressive design! If there is any product out there, that’s beneficial for the people at a good price. This is at the top of the charts.

I bought this for my wife for her training. She says she loves it and it works although she thinks the size is a little big for her. Quality is great and looks durable. Just make sure you clean it after each use. Very light and made for training/cardio.

Works well, super comftorable, I just wish it was tougher to breath through, I can put it on the hardest difficulty while I sleep and its not too bad

Quality product amazing addition to my workout routine very easy to use and great response with breathing exercises.

I’ve been using this mask on runs consistently for the last month and I’ve felt a noticeable strengthening in my lungs. I live about 500 feet higher than sea level and I am training for a marathon in Denver, Colorado (mile high city). The mask is easy to clean and use. I’ve worn it on 2 hour runs comfortably. I’ve progressed in resistance since the start. Only problem is I have a small face and head so the straps do slide around and can cause the mask to loosen a bit while in use. Because of this, it is hard to judge if I am getting the full benefit of the product, but it is better than nothing at all.

It seems to work well in terms of breathing. Not sure on comfort. When its snug it presses hard on bridge of nose, leaving it feeling bruised. Also very difficult to wear sportglasses on a ride because of mask placement up on nose competing with where glasses need to rest on nose

Due to everything going on in the world right now, the gym is no longer an option for me and I'm doing more outdoor running. I'm a pretty avid runner, and training masks have always intrigued me. Also, strengthening your lungs and overall endurance is probably a good thing these days. So, I finally decided to pull the trigger on this one based on pretty decent reviews. All I can say is wow, I'm very happy with the purchase. I'm not going to lie, part of me wondered if these masks were a tad on the gimmicky side. I can tell you this one is not. It amps up your workout. It will probably take most people some time getting used to it, but it really pushes you. The intensity of your breathing is very elevated. It's pretty comfortable and adjustable. It has two dials which adjust the resistance. I had to start low, and I run a lot! The dials basically adjust the airflow going in and out. The price is good too compared to others in the market. Overall, I'm very happy with this purchase. It's a good, quality product. I feel like I'm going to have a great summer of running and health. This is a definite recommend from me.

Sensational. Comfortable, easy to use, &adjust.

Exacte a la description du produit et arrive comme prévu dans les temps

Not heavy, and have multiple levels

This mask is very good! It helped me train for my Acatengo hike.

Excelente producto 100 por ciento recomendable