Dedicated cyclists don't let a cold fall wind or a bit of early spring precipitation keep them off the bike. After all, these are typically the seasons for building a base, and riding on through neighborhoods or woods during the coming and going of leaves is one of cycling's greatest pleasures. Based on their long range ride design and perfectly balanced combination of insulation, protection, and breathability, Gore Bike Wear's Oxygen Partial Thermo 34 Bib Tights are an indication that they recognize this, too. They feature strategically placed panels of Gore's venerable Windstopper fabric for wind and road spray protection in the crotch and the center of the back. This protects the areas where you're most likely to catch chilling air and water while offering additional ventilation through in the areas where you won't miss the added barrier. Since Windstopper is literally windproof i. e., it meets or exceeds the level of wind resistance required to officially qualify a fabric as windproof, your engine and back will stay warm and dry while the thermo fabric used throughout the rest of the tights maintains a comfortable temperature. The bibs themselves are the one non thermal area, which we appreciate for flexibility and the ability to layer as little or as much as we like up top. The Oxygen insert is designed for long rides around the four hour mark. It blends variable high density and open cell foam padding and wicking and ventilating material in a pliable, supportive structure. The Oxygen's horst and graben landscape pads the bones you sit on and creates voids to protect the areas you'd rather not sit on. Elsewhere in the tights, the flatlock stitching and shifted seams eliminate abrasion on areas like the knees that are prone to abuse at the hands of bib tights. You can focus on the scenery rather than counting down the base miles because of an uncomfortable chamois or irritating seams. Reflective elements on the front, sides, and back help keep you visibl...