Tempr Flux is one universal size with an auto-fit sensor — the boots read your leg shape on the fly, no manual sizing. Max thigh circumference 25 in / 64 cm; max calf 21 in / 53 cm; max ankle 16.5 in / 42 cm.

Socks apply static pressure — the same pressure all the time. Tempr applies dynamic pressure that moves up your leg in sequence, foot to thigh, mimicking the muscle pump your calves stop doing when you're on your feet all day. Different mechanism, different result.

The motor is whisper-quiet — about as loud as a quiet conversation. Fine for late-night sessions while the house sleeps.

Tempr Flux boots (pair), controller, USB-C charging cable, and the printed Tempr Protocol guide. The travel carry bag is available separately or in the Flux + Travel Bundle.

Up to 3 hours of continuous use per charge — about a dozen 15-minute sessions. Charges over USB-C, and pass-through charging means you can run a session while plugged in.

Most people start with 15-minute sessions, 3–5 times a week. Athletes often use it daily after training; if you're on your feet all day, 3–4 evenings a week is a good rhythm. The included Tempr Protocol guide maps routines to your situation.

Sessions auto-end at 15 minutes by design — it's the protocol length, not a battery limit. Want more? Start another session; the battery runs up to 3 hours per charge.

Flux has 3 compression modes and 3 intensity levels. Start gentle, work up. The Tempr Protocol guide pairs modes with scenarios — post-training flush, end-of-day reset, pre-sleep wind-down.

Wipe with a damp cloth and mild soap. Don't submerge, machine-wash, or use harsh chemicals. Store dry at room temperature — the travel bag is ideal.

Shipping is free on all orders. Delivery takes 5–10 business days. You'll get a tracking link by email the moment your order ships.

Use the tracking link in your shipping confirmation email, or log in via Track Your Order in the footer.

You have 30 days to try it at home. If it's not what you hoped, send it back for a full refund. No restocking fee, no argument.

Anything breaks under normal use within 2 years, we replace it. No fine print. Contact us with your order number and we'll take care of it.

Yes — US customers can use FSA/HSA funds. Pay with your FSA/HSA card at checkout where accepted, or submit your receipt to your plan administrator.

Tempr Flux is a wellness device, not a medical treatment. If you have a medical condition or you're pregnant, talk to your doctor before using compression products of any kind.