The VX Carbon is back in stock - 4,000 km wear-tested, 42% energy return
38L · 840D ballistic nylon · 780g
Thirty-eight litres in a carry-on-legal footprint, cut from 840D ballistic nylon with a 1,200mm PU coating and a 6.5mm YKK Aquaguard main zip. Abrasion-tested to 25,000 Martindale cycles - roughly four years of being thrown into a gym locker.
A 9L ventilated base compartment takes a size 12 shoe and a wet kit without reaching the main body, and the internal sleeve holds a 16-inch laptop in a 12mm foam cradle. Removable strap, four compression points, a 780-gram empty weight.
Free 2-day shipping on orders over $75, dispatched from Boulder within 12 hours. Run in it for 90 days - if it does not hold up, send it back for a full refund.
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I rotate the Meridian through every easy day of a marathon block and measured the rebound myself at 640 km - still within 4% of new. The 10mm drop is forgiving at the end of a 35k when my form starts to fall apart.
Twelve weeks of heavy cleans and box jumps and the waistband has never rolled once. Compression still holds at the calf after about forty washes, which is more than I can say for the pair I replaced.
Wore the Stormline through the back half of a 100k in horizontal rain and stayed dry under it. Docking one star because the hood is cut tight over a cap - size up if you run in a visor.
I ran the Pulse against my chest strap for six weeks of track sessions. Average gap was around 2 bpm even on 400m repeats, and being able to pull raw FIT files without paying a subscription sealed it.
