打算买这款scubapro背飞套装，跪求大神指教<br /><br />Scubapro X-Tek Pure-Tek Single Tank Set D.I.R. 13: <br /><br />Features:<br /><br />- 18 kg/30 lb lift capacity Donut Wing.<br /><br />- 27 kg/ 60 lb lift capacity Donut Wing for twin cylinders.<br /><br />- 1680 DEN Ballistic Nylon outer shell.<br /><br />- 420 DEN Nylon inner bladder.<br /><br />- Stainless Steel back plate.<br /><br />- Continuous harness with stainless steel back plate for optimal stability when using twin cylinders.<br /><br />- Two shoulder D-rings and one waist stainless steel D-ring on the left side.<br /><br />- 50mm wide crotch strap with two stainless steel D-rings.<br /><br />- Single Tank system with single tank adapter and two super cinch straps.