Are they very revealing? I've read that some Jammers are so thin that "nothing is left to the imagination". I was hoping these are relatively discreet

No, you can't see through them at all. But the jammers are tight.

Having trouble figuring out sizes. my son is 11, 55 in tall wt approx 90 lb. Thoughts?

The sizing is by waist size. Your best fit will be measuring his waist and ordering the nearest size. My 11 yr old is 85 lbs and very lean and wears a 28.

Does this item have a jock suport sewn in? Tried others that don't, and it looks like a camel toe.

No I can’t say I’ve ever seen a men’s swim suit with jock support sewn in.

My husband has been wearing these (this brand) for years and he said "They are awesome and no they never fade!"

Mens Durafast One Jammer Swimsuit Compressive Lap Swim

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$90.92

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Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🏊‍♂️ Swim Strong, Last Longer — Own the Water with TYR Durafast One!

FREEDOM TO FLOW - 4-way stretch fabric delivers unrestricted movement, perfect for intense training sessions or open water challenges.
SUN SAFE PERFORMANCE - UPF 50+ rating shields your skin during outdoor swims, so you can focus on your stroke without worry.
PRECISION FIT ABOVE THE KNEE - Compression fit with adjustable drawcord waist offers secure, comfortable coverage that won’t weigh you down or ride up.
BUILT TO LAST SWIM AFTER SWIM - Crafted from 100% polyester that’s 20x more durable than standard swimwear, ensuring your jammer stays fresh and fade-free season after season.
CHAMPION GRADE COMFORT SUPPORT - Fully lined with reinforced stitching, these jammers provide reliable support and quick-drying comfort for long-distance swimmers.

The TYR Men's Durafast One Jammer is a high-performance athletic swimsuit designed for serious swimmers. Made from 100% polyester that’s 20 times more durable than traditional swimwear, it features 4-way stretch for maximum mobility, UPF 50+ sun protection, and an adjustable drawcord waist for a secure, compression fit above the knee. Engineered to resist chlorine fade and built for long-lasting comfort, this jammer is the go-to choice for athletes who demand durability, support, and style in every lap.

Specifications

ASIN	B001M9KYL8
ASIN	B0BMDXQ7L6
Age Range Description	Adult
Apparel Closure Type	Pull On
Apparel Fabric Stretch	High Stretch
Apparel Fabric Weight Class	Lightweight
Back Style	Closed Back
Best Sellers Rank	#28,611 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #7 in Men's Athletic Swimwear Jammers
Brand Name	TYR
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (2,076)
Date First Available	April 9, 2011
Department	mens
Fabric Type	100% Polyester
Fit Type	Athletic
Fit to Size Sentiment	Neutral to Positive
Garment Size Country	United States
Global Trade Identification Number	00036702157315
Import Designation	Imported
Item Type Name	Swim Trunks
Item Weight	4 ounces
Item model number	SLAP7A
Life Event	Swimming
Lining Description	Polyester
Manufacturer	TYR
Manufacturer	TYR
Manufacturer Part Number	SDUR7A
Material Type	Polyester
Number of Items	1
Pattern	Solid
Product Benefits	Durable, chlorine resistant, and sun protective.
Product Care Instructions	Hand Wash Only
Rise Style	Mid Rise
Size	32
Sleeve Length Description	Sleeveless
Sleeve Type	Sleeveless
Special Size Type	Standard
Strap Type	Adjustable
Style Name	Durafast One Jammer Swimsuit
Style Number	SDUR7A
Swimwear Bottom Form	Jammer
Swimwear Form Type	Bottom Only
UPC	036702157315
Ultraviolet Protection Factor	UPF 50
Unit Count	1 Count
Waist Size	32 inches

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