For travel, Firefly is our pick: each 10 g device has no wires or charger and runs 30 hours, and Gear Patrol recommended it for travel and big events. The Hypervolt 3 is TSA approved for carry-on bags, per Hyperice, and Comrad's 15 to 20 mmHg knee-highs were Good Housekeeping's travel pick.
Updated October 7, 2026.
1. Firefly Recovery
$49 one pair, about 30 hours per device; $264 for six pairs, per Firefly
FDA cleared under 510(k) K201131 for stimulating healthy muscles to improve muscle performance, and you can walk around at low to medium settings, per Gear Patrol.
2. Hyperice
$249 list price; $199 on sale at Hyperice on October 6, 2026
2.0 lb with a carry case in the box, and Hyperice says it is TSA approved for carry-on only.
3. Comrad
$34 per pair, list price; no subscription
Good Housekeeping named Comrad's 15 to 20 mmHg knee-high its travel pick after lab-testing 15 pairs, at $34 a pair.
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Hyperice says the Hypervolt 3 is TSA approved for carry-on bags only, and it ships with a carry case. For other models, check the maker's travel guidance before you fly.
Firefly and compression socks both fit under clothes. Firefly is a 10 g, wire-free muscle stimulator with a travel protocol, per Firefly, but it is single-use at 30 hours a device. Comrad's knee-high compression socks were Good Housekeeping's travel pick, at $34 a pair.