Best Seller - Respiratory trainer. +35% lung capacity in 4 weeks.
RS-Resfit Performance
By training them with resistance, you can improve endurance, oxygen intake, and breathing strength β all with just a few minutes of daily training.
Best Seller
Tap each segment to explore what RESFIT does for your body and performance.
Used By Athletes Worldwide
Best Seller
Used by cyclists, runners, swimmers and elite athletes worldwide to improve breathing performance.
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RESFITβ’ Dual Knee Strap - Patella Support
RESFITβ’ Compression Running Socks
RESFITβ’ Training Mask - Athlete Pro
RESFITβ’ Unisex Flexibility Straps - Yoga & Stretching
RESFITβ’ Thermal Face Guard - Windproof Fleece Sports Mask
RESFITβ’ Winter Sports Balaclava with Air-Filter Protection
RESFITβ’ Sport Waist Trainer Belt
RESFITβ’ Silicone Ear Plugs - Sleep & Swim Protection
RESFITβ’ Breathing Trainer - Cardio Edition
RESFITβ’ Case
RESFITβ’ Mouth Guard Pro Series - 2 Pack
RESFITβ’ Posture Corrector
RESFITβ’ Sauna T-Shirt - Neoprene Layer System
RESFITβ’ Swimming Goggles PRO - Anti-Fog Racing Lens
RESFITβ’ Boxing Dumbbells - Speed & Power Training
RESFITβ’ Jaw Toner Facial Trainer AIR 2.0
RESFITβ’ Protective Calf Sleeve - Impact Defender
RESFITβ’ Advanced Compression Socks
RESFITβ’ Mouth Tape for Sleep
RESFITβ’ Sport & Night Nasal Strips
Jordan M.I started using this every morning before my runs and within ten days I could feel the difference. My breathing stayed controlled even on the hardest intervals. I use it on level 3 now and honestly it has become as essential as my shoes.
2 days ago
Tyler R.Two weeks in and I am already breathing more efficiently on long climbs. It fits in any bag and takes seconds to clean. I use it while warming up on the trainer every morning.
1 week ago
Priya S.My recovery between rounds dropped noticeably after about three weeks. I was skeptical but the resistance levels let you progress gradually and that is what makes it actually work.
4 days ago
Jhon T.Started using it before practice each morning. By week two my lungs felt stronger and I could push through the fourth quarter without losing my rhythm
3 days ago
Elena V.After a month of daily use my lap times improved and I am holding my breath longer between strokes. The silicone is comfortable and the resistance dial adjusts smoothly.
5 days ago
Ryan K.Breathing under pressure is everything in combat sports. Five minutes before sparring and I can feel my diaphragm engaging properly. I have been training with it for six weeks and I am not going back.
6 days ago
Natasha W.High altitude runs used to wreck me. Six weeks with this device and the elevation just does not hit the same. Build quality is solid and cleanup is quick.
9 days ago
Chris D.My second half stamina has genuinely improved. Setup took about thirty seconds, the instructions are clear and the different resistance settings let me push at my own pace. Great value.
11 days ago
Simone A.I keep one at my desk and use it a few times throughout the day. The resistance is precise and my lung capacity has noticeably grown week over week. I already bought two more for close friends.
2 weeks agoFAQ
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