Altitude Briefs

Name: Altitude Briefs
Brand: ioMerino
SKU: 27-302-01-01
Price: 40.00 AUD
Availability: InStock

$40.00 - $50.00$0.00 - $50.00

or make 4 interest-free payments of $10.00 fortnightly with More info

Don't ruin great layers with average undies. Our best-selling lightweight Altitude Merino Underwear now come in briefs! Rest assured, they're every bit as soft, lightweight, warm and comfortable as the rest of our high-performance thermal layers, offering superior performance to keep you warm and comfortable when you need it the most.

Tag-free labels, flatlock stitching and a flexible, ultra-soft ioMerino elasticated waistband help eliminate chafe and bulk and maximize comfort and a self-fabric fly adds both comfort and function. Say goodbye to ordinary undies, and hello to the new Men's Altitude Merino Briefs.

SIZE & FIT

True to size.
Model wears size small in black and rust. Model specs - height 173, chest 99cm, waist 76cm.
Model wears size medium in forest marle and moroccan blue. Model specs - height 181cm, chest 103cm, waist 81cm (32 inch). Normally wears 32 inch pant, 10-11 size shoe.

Self fabric real fly. Mid rise.

Designed to fit perfectly under our other layers.

Size Guide.

BEST FOR

Everything!

BENEFITS OF MERINO

LIGHTWEIGHT

THERMO REGULATING

SUPER SOFT & COMFORTABLE

BREATHABLE

MOISTURE WICKING

ODOUR RESISTANT

NATURAL

ETHICALLY MADE

Favourite undies

I've been wearing io merino undies for a few years and i keep buying them. Great design, and quality, I've tried other brands but they don't last like these. Very comfy thanks io merino !!!!

Hi there! We're thrilled to hear that our Altitude Briefs are your favorite undies! We take pride in creating high quality products that our customers love. Stay warm and comfortable.

Absolutely The Best Briefs

These are absolutely the best briefs I have ever worn. I love the full coverage hipster cut of these briefs. I have searched for years for Merino Wool briefs that fit this well. I'm from the US and have tried Merino briefs from major brands like smartwool and from lesser known brands from the EU as well as other Australian brands. The other brands either contained little wool or were terrible cuts. I love Merino because it doesn't get soggy and smelly like cotton in the summer and isn't suffocating like nylon and polyester. Merino is really an all year fabric for me even in the hot southern US. I only wear high wool content shirts, socks and underwear for year round comfort that doesn't stink. These Altitude briefs fit great and hold everything in place no matter the level of activity, whether running, hiking, kayaking or sitting at my office desk. I hope IO never changes the design of these briefs. I will be a forever customer for these briefs!

Husband says very comfy

Bought these for my husband who has advised they are super comfortable and breathable
Will be buying more shortly to replace all his current underwear

Great fit and extremely comfie

Lovely material and good sizing. Extremely comfie. Also professional, friendly, and very efficient customer service when having an item replaced.

My fav undies

Well made, natural and a supportive feel!
Will be my go to undies from now on

Rad undies!

I’ve been searching for natural fibre jocks for running, found just what I need in “io”, supremely comfy, a “barely there” fit and so far, chafe free! Highly recommended!

5 stars: 10 (91%)
4 stars: 1 (9%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Favourite undies

I've been wearing io merino undies for a few years and i keep buying them. Great design, and quality, I've tried other brands but they don't last like these. Very comfy thanks io merino !!!!

Hi there! We're thrilled to hear that our Altitude Briefs are your favorite undies! We take pride in creating high quality products that our customers love. Stay warm and comfortable.

Absolutely The Best Briefs

These are absolutely the best briefs I have ever worn. I love the full coverage hipster cut of these briefs. I have searched for years for Merino Wool briefs that fit this well. I'm from the US and have tried Merino briefs from major brands like smartwool and from lesser known brands from the EU as well as other Australian brands. The other brands either contained little wool or were terrible cuts. I love Merino because it doesn't get soggy and smelly like cotton in the summer and isn't suffocating like nylon and polyester. Merino is really an all year fabric for me even in the hot southern US. I only wear high wool content shirts, socks and underwear for year round comfort that doesn't stink. These Altitude briefs fit great and hold everything in place no matter the level of activity, whether running, hiking, kayaking or sitting at my office desk. I hope IO never changes the design of these briefs. I will be a forever customer for these briefs!

Husband says very comfy

Bought these for my husband who has advised they are super comfortable and breathable
Will be buying more shortly to replace all his current underwear

Great fit and extremely comfie

Lovely material and good sizing. Extremely comfie. Also professional, friendly, and very efficient customer service when having an item replaced.

My fav undies

Well made, natural and a supportive feel!
Will be my go to undies from now on

Rad undies!

I’ve been searching for natural fibre jocks for running, found just what I need in “io”, supremely comfy, a “barely there” fit and so far, chafe free! Highly recommended!

Great knickers

I recently purchased two pairs of these and after only one day to try them out I will grab another pair. So comfy , especially the very soft stretchy leg hems. No chafing, YAY

Almost perfect

I love wool undies. With wool you only need one pair (ha ha, but almost true!). These are great quality. My only quibble, like all or most jocks, the elastic at the top of the legs is just a little tight for me.

Excellent undies

Top quality undies. They are thoughtfully designed for the male body which makes them very comfortable to wear. Nothing is too tight or too loose on these underpants.

Super comfy

Just purchased a couple of pairs of briefs - so comfortable, I’ve been wearing them every day. Hope they prove to be durable as well.

Fabulous to hear David!

Perfect for the trails

Having tried almost every option to solve the dreaded chafing issue on long runs, I bit the bullet and grabbed a pair of these. Why didn’t I do this years ago? 50+km run and no issues what so ever. Highly recommend!!

Hey Jess! So glad we could help solve an ongoing issue for you! Enjoy your chafe-free runs.

		XS	S	M	L	XL	XXL	3XL
Waist	Inch	27	28-30	32-34	36-38	40-42	44-46	48-50
	cm	68-70	71-76	81-86	91-96	101-108	111-116	121-126
Chest	Inch	32-34	34-36	38-40	42-44	46-48	50-52	54-56
	cm	81.5-86	86-91	96-101	106-111	116-121	126-131	132-137

	XS	S	M	L	XL	XXL
Pit to pit	47.4	51.2	55	58.8	62.6	66.4
Torso Length	65.9	68.5	71	73.5	76.1	78.6
Sleeve Length	50.2	52.1	54	55.9	57.8	59.7

	XS	S	M	L	XL	XXL
Pit to pit	49.4	53.2	57	60.8	64.6	68.4
Torso Length	68.9	71.5	74	76.5	79.1	81.6
Sleeve Length	74.2	76.1	78	79.9	81.8	83.7

		S	M	L	XL	XXL
Inside Leg	inch	29	30	30.5	31	31.5
	cm	74.5	76	77	78.5	80
Outside Leg	inch	41	41.5	42	42.5	43
	cm	105	106	107.5	109	110
Waist	cm	77.2	82	86.8	91.6	96.4

	XS	S	M	L	XL	XXL
Waist	58.9	64	69.1	74.2	79.2	84.3
Hips	68.9	74	79.1	84.2	89.2	94.3
Outer Leg	90.3	93.5	96.7	99.8	103	106.2

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