The short answer
Pneumatic compression boots give you a feeling of light legs, and that is about all the studies confirm. Two recent meta-analyses find a small benefit on perceived muscle soreness, and one of them concludes, with moderate certainty, that they do not reduce soreness at 24 hours. The protocols studied revolve around 80 mmHg for 20 to 30 minutes: the pressures of 150 to 260 mmHg promoted by brands correspond to nothing proven. If you buy a pair, buy them for comfort, not for performance.
The models compared
| Model | Price | Chambers | Maximum pressure | Programmes | Battery life |
|---|---|---|---|---|---|
| Compex Ayre | 549.99 EUR | 4 | 120 mmHg | 2 | cordless |
| JOLT Boots, leg pack | 699 EUR displayed, crossed out from 949 EUR | 6 | 260 mmHg | 6 | 2 to 4 h |
| Compex Ayre Pro | 749.99 EUR | 4 | 150 mmHg | 3 | up to 3 h |
| Hyperice Normatec 3 Legs | no official price in euros | specifications not recorded | |||
What this table tells us
Maximum pressure is a sales argument
JOLT advertises up to 260 mmHg, Compex 120 or 150 mmHg. The 2024 meta-analysis, which pooled 17 studies, notes that the most widely used protocols revolve around 80 mmHg, for 20 to 30 minutes. No study in this body of research shows that a higher pressure aids recovery more. A high pressure can mostly become uncomfortable: start low.
The number of chambers is not proven either
JOLT writes that « recovery boots with fewer than 6 chambers are only slightly effective ». We found no study comparing the effect according to the number of chambers. Four or six chambers change the feeling of a wave along the leg, not a measured result.
Claims to read with caution
The JOLT page mentions fighting cellulite and varicose veins, eliminating lactate, and blood that is « totally drained ». Compex talks about eliminating lactic acid. Lactate is cleared by the body within an hour or two of exercise anyway, whether or not you wear boots, and varicose veins are a matter for medical advice, not a recovery device.
What the studies say
The meta-analysis by Maia and colleagues, published in 2024 in Biology of Sport, pooled 17 studies and 319 participants. It finds a trivial to small benefit on muscle function, trivial to moderate on pain and soreness, and a very variable effect on markers of muscle damage. Its authors conclude that pneumatic compression « could » help, mainly by reducing perceived soreness.
The one by Canez and colleagues, published in 2025, covering 19 studies and 672 participants, is harsher: it concludes with moderate certainty that pneumatic compression does not reduce soreness 24 hours after exercise.
In other words, the main effect is the feeling of well-being during and just after the session. That is real value for anyone who enjoys it, but it is not a proven recovery gain. Sleep, hydration and eating after exercise matter more: our guides on what to eat before and after sport and on hydration give the benchmarks.
Precautions
JOLT asks for a doctor’s approval in cases of pregnancy, diabetes with neuropathy, pacemaker, recent surgery, epilepsy, migraines or a joint prosthesis. Its warning mentions neither phlebitis nor heart failure, which are nonetheless classic contraindications to leg compression: if you have a history of venous thrombosis, take anticoagulant treatment or have a heart condition, ask for medical advice before any use.
Our verdict
If you like the feeling and the budget is not a problem, the Compex Ayre is the cheapest of the boots compared, at 549.99 EUR, cordless, with a pressure that comfortably covers the 80 mmHg used in the studies. JOLT’s 260 mmHg and six chambers bring no proven benefit. And if your goal is to recover better, start by sleeping and eating properly after exercise: it is free and better established.
Our sources
- Official websites jolt.fr and compex.com, consulted on 24/09/2026: prices, specifications, programmes and warnings.
- Maia F. et al., Biology of Sport, 2024, meta-analysis of 17 studies (PMID 39416507).
- Canez M.S. et al., Journal of Bodywork and Movement Therapies, 2025, meta-analysis of 19 studies (PMID 40954632).