I don't sell any of these nor do I receive any remuneration if you buy them, and I have not personally reviewed all of them although I have purchased this tent, they are listed here to give you perspective
Introduction
one person bivy type swags which are light enough to hike with
Geertop Plume Bivvy 2 Camo single wall swag
1.13/1.25kg crossed poles at head end + loop foot pole - all 8.5mm aluminium; needs to have each end guyed out if you want through ventilation;
vents at each end plus 2/3rds of length mesh/fabric dual layered door; 230×75-60x60cm; packs to 44x12cm but not easy to get in or out of the supplied bag.
very popular in the UK where stealth camping in strong winds is a common requirement
if rain or strong winds are forecast probably best used with a tarp
much taller than the Plume and inner part is mostly mesh consisting of 2 side mesh doors and a central ceiling fabric but unlike the Plume Bivy, it is dual wall as it also has a fly that can be put over it if rain or cold wind is forecast and will have much less condensation issues compared to the single wall Plume Bivy or other single wall bivvies.
https://www.youtube.com/watch?v=zE6u_4GuhSo failed the heavy rain test - leaked through the seams even though they were seam sealed - either waterproof them yourself or use under a tarp
https://www.youtube.com/watch?v=qIpCi-jSvJQ Blazer version c2021 has an issue with the fly touching the top of the inner tent and transmitting condensation into the tent - best used with a tarp or on nights when the fly is not needed