Altera 40 oz. Stainless Steel Tumbler
$25.00
Why this pair works
01
Reinforced heel & toe
Nylon-reinforced impact zones survive concrete and pivot wear.
02
Continuous wicking
Dry feet at hour eleven, not just hour two — alpaca all shift.
03
Two-way regulation
Cold-morning warmth, hot-afternoon breathability. One sock.
04
Lanolin-free comfort
No itch when wet. Hypoallergenic. Soft against skin.
Build your rotation
Same blend system. Different builds.
Most Altera customers run a multi-pair rotation — same engineered blend, different cushion and height for what the day demands.
Pair with
Altera Graphic T-Shirt - Navy Blue
$25
Pair with
Altera Graphic T-Shirt - Sage Green
$25
Pair with
Altera Graphic T-Shirt - White
$25
Unconditional Lifetime Warranty
If they ever wear out — heel, toe, cuff, anything — we replace them. No fine print, no original-purchaser clause, no expiration on any line we make.
See full warranty →Specs
Weight
Mid-weight cushion
Blend
Reinforcement
Nylon-reinforced heel pad, toe box, and arch
Made in
USA
Care
Machine wash cold · Tumble dry low · No fabric softener
Warranty
Unconditional lifetime — any wear-out, any age