The Sonic is officially retired.You've found a page of history! The Sonic is no longer produced by Misty Mountain and it is not available to buy from major online retailers. You can still check out all the specs and claim your ownership.
The Sonic provides comfort and support for multi-pitch trad routes and with its adjustable leg loops, makes a great ice climbing harness. Features include quick adjust buckles at the waist and legs, 4 big gear loops for ample racking, a full strength haul loop and reinforced tie-in points. The leg loop holdup straps adjust for proper fit, and can be dropped to heed the call of nature. The cambered waist belt is 3.2" wide in the back and narrowing to just 2" at the front. Adjustable leg loops taper from a wide 2.9" in back to an unobtrusive 1.3" in front. The waist and legs are lined with a soft, moisture wicking, polyester fabric covering a stiff closed cell foam for comfort and support. The Sonic harness will easily adapt to a wide range of climbing situations and will become your go to harness for all of your vertical adventures
In grams, the weight, as stated by the manufacturer/brand.
If there are differences in weight (due to multiple sizes or optional accessories) we'll list them here.
The default weight is the middle-most size, often this is size M.
| 456 g|
|Sizes||XS, S, M, L, XL|
Number of Gear Loops
Gear loops are used to hold gear (quickdraws, cams, etc) onto your harness. 4 gear loops is most common.
0 - 1 Gear Loops
Most often on full body harnesses or guide/gym style harnesses.
2-3 Gear Loops
Mostly found on lighter harnesses made for [ski] mountaineering or high-end sport climbing where weight is a high priority.
4 - 5 Gear Loops
The standard/most common number for climbing harnesses. Perfect for sport and trad.
More Than 6 Gear Loops
Designed for long multi-pitch and big wall climbing, found on harnesses made to hold the maximum amount of gear.
Occasionally, the number of gear loops will change on a harness model depending on the size. There could be 7 gear loops for the med/large but only 5 gear loops for the xsmall/small. In this case we list the highest number for the filters, and then write an explanation on the product page like, “Size S/XS can only fit 5 gear loops.”
|4 Gear loops|
|Ice Clip Slots|
Ice Clip Slot
Ice clipper slots are made to fit a carabiner that holds ice screws. These slots are generally only used by ice climbers but there is no disadvantage to having them on your harness.
Less than 40% of harnesses will have ice clipper slots. And those harnesses will usually have 2 or 4 slots, often located next to, or between, the gear loops.
|Belay / Tie-In||One Loop|
|Waist Buckle Type||Quick Adjust|
|Leg Buckle Type||Quick Adjust|
Trad climbers often look for a haul loop as they're intended to haul a rope (second line) or pack (while you climb the chimney).
A haul loop can also hold shoes or other accessories. Although not the intended use, it is also commonly used to hold a chalk bag.
When you’re pumping out 10 feet above your last fiddled-in nut, the last thing you want to sweat about is how much it might hurt to take a fall in your older-than-dirt harness. Don the completely redesigned Sonic and you’ll be as relaxed as Willie Nelson getting recreational in Colorado. Testers loved it for long routes like Yellow Spur (5.10a) and The Naked Edge (5.11a) in Eldorado Canyon, Colorado, where tight belays forced semi-hanging stances. “I could sit in this harness for long periods without experiencing pain or numbness,” one user said. It has extra-wide leg loops and a high-backed, supportive waistbelt to prevent hot spots and digging. The waistbelt also flares out on the bottom, wrapping around hips instead of gouging into soft flesh in the midsection. A Hypalon patch in the rear of the waistbelt adds durability for scumming and chimney sections, and a large plastic buckle makes bathroom breaks a cinch. “An easy-to-operate buckle is crucial for quick bathroom breaks on long routes when you’re racing daylight,” one female tester said. A full-strength haul loop in the rear and four upturned gear loops round out the features.